Hi everyone I really hope someone can help me out I have a 1999 dodge ram 1500 sport 4×4 it has 90k the truck is all stock I recently went to the store about a mile from home the truck was running fine no problems at all and when I left the store as soon as i got to 25mph I had a severe vibration I pulled over thinking I had a flat tire and. I have noticed a minor, annoyance of a resonating type vibration around 54-58 mph while cruising under slight load (where I spend most of my time. Tire out of balance vs driveshaft imbalance? A driveshaft vibration and a tire imbalance will have very different frequencies. My 2014 F-350 Dually two wheel drive has developed a body vibration as the truck hits 60 mph and increases as the speed goes up, but if speed is held even the vibration will come and go. 120 inch tube walls and a 1. Super ATV's. After driving to NY skiing last weekend, the noise doubled and I could not drive faster than 40 mph due to the vibration. I have really bad driveline vibration between 30 and 50 mph. Speed sensitive vibrations are usually due to an out-of-balance wheel. We have been advised that the transfer case needs to be replaced and the drive shaft balanced. You suggested you have a balanced set, this will tell. Other parts like replacement wheel hubs and bearings help add support to the stock axle shaft following installation of larger. The bad vibration from 75-80 is gone! With the front driveshaft out the vibrations are completely gone. If vibration is not eliminated, measure tire and wheel/rim assembly for excessive lateral or radial run-out. I’ll start with the lift and explain what it did to your steering, suspension, and driveline one aspect at a time. The car cruises nicely at 55 to 60 mph, but once the speed climbs to 70 or above, there's a vibration. I hope this is not tranny/clutch related. This will be a higher frequency vibration than that of an out-of-balance wheel for example, since the driveshaft turns 3-4 times faster than the wheels. Unbalanced tires can lead to uneven wear, vibration, and potentially unsafe driving conditions. Check out these pics to see some Jeep Cherokee Lifts with Tires of different sizes. Vibration while driving could be a result of driveline vibration, or the disruption in the operating positions of your driveline, however it could possibly likewise mean issues with an out of balance or under-inflated tire. Before I put in my shims this was a big cause of my vibration. So to make your car correct, remove the damper, do not use any washers and install the guibo with the arrows correctly oriented. Everything was great. Every time that tire rotates, one “bump” can be felt as that one bubble slaps the road’s surface. I've had 2 alignments done. 14x the tire rotation rate in Hertz if the truck has a 40 inch tire diameter. I had a neighbor press both out and I put the new ones in, now I have a huge vibration at 65MPH. 25 inch diameter tube. Irregular tire uniformity can cause side-to-side motion during speeds up to 15 mph (24 km/h). I ruled out a tire - truck vibration and noise. It is also possible for tire shake to occur ONLY during braking. Truck Speed from Vibration Frequency. The latest Ram 1500 Classic recall is because the rear driveshaft could detach from the truck as the result of an incomplete weld. ( Especially considering I have different tires on it than from the factory Wranglers). The yellow paint numbers and letters tells me that the drive shaft was replaced, with one from a junkyard. I have really bad driveline vibration between 30 and 50 mph. Irregular tire uniformity can cause side-to-side motion during speeds up to 15 mph (24 km/h). Every time that tire rotates, one “bump” can be felt as that one bubble slaps the road’s surface. 5mph on some models) and large, low-mounted fuel tank. In my case it could have been snow, dirt or slush on one of the rims causing the wheel to be out of balance as well, but the tire/wheel swap did the trick for me. Potential Sources of Vibration. An equal mass, placed source of vibration in machines with by adding compensating masses to the at an angle of 180° to the unbalanced rotating parts. Guy tells me he straightened the drive shaft very slightly. I traded my 2012 Ram Cummins for a 2016 Ram 4x4 crew cab cummins ( no air level system). It's possible that the sounds you're hearing are not differential-related. Replace the original driveshaft with another BAD driveshaft and BAD tire. Sometimes vibration can be better or worse at certain speeds, but unaffected by acceleration or deceleration. I had a vibration at 70+MPH. Everything shifts good runs out good etc. It's not the front end,the steering wheel is smooth. Before I put in my shims this was a big cause of my vibration. Then I added 2 ounces of Dyna Beads to the front and 3 ounces to each of the rear tires and all the vibration is gone. Tires have steel woven inter linings sandwiched in rubber for extra support. Disconnect one end of the driveshaft, rotate the driveshaft 180 degrees and re-install it. Tenders are invited for Gear Wheel (Teeth-29) and (Teeth- 43,34,33),Engager assembly, Vibration Shaft, Fly Wheel, Guide Colum, Gear Wheel of main Gear Box, Shaft with Key and coupler of main Gear Box for BCM, Tooth Disc for FRM-80, Disc for FRM-80, Spacer Ring for T/U, Drive Shaft of main Gear Box, Pin for Lining Trolley and Flange for T/U of 09-3X Machine, Hydraulic Distributor block, Guide. Driveline vibration is a common problem that can limit RPM. I'm over 600hp A4 and now adding a FTI 3800 converter, I'm looking for performance & no vibration, street & drag. I too have a 2003 (wife's) and it has developed this same problem with the Vibration only being there under load. Home-Lansfield Satin Stripe 300 Thread Count King Fitted White Catherine Sheet npzxtc6325-high quality & fast shipping - bowls. Has anyone had a vibration that could not be solved ?? I recently bought a 2006 LS. I have had the tires balanced and rotated the driveline rebalanced and it did not change. The “order” of the vibration is simply how many “bumps” it makes per revolution. So, they have ordered another driveshaft and tire but cannot rule out a backend issue. Driveshaft vibrations will be a higher frequency vibration. Get the drive shaft off, and the vehicle drives like new with only the rear drive shaft connected. 2013 toyota sequoia platinum, suv 4x4, this2013 toyota sequoiaplatinum might be just the suv 4x4 for you. My wife and I just bought a used 2007 All Wheel Drive Cadillac STS V-6 a few weeks ago and have recently found an odd vibration that starts around 70 to 75 MPH. Stated another way, at 100 mph with a 1:1 high gear, a 3. I read the vibration tsb and this is definetly not a tire balance problem. Vibration while driving can be a result of driveline vibration, or the interruption in the operating angles of your driveline, however it can likewise suggest troubles with an out of balance or under-inflated tire. Re: Fluid 'balancing' (driveshaft / tires) Fluid will just spread it's self out evenly in a round container (tire, hollow drive shaft, etc. TIRE BALANCE, VEHICLE RIDE, AND VIBRATION. Some driveshaft shops claim to be able to replace these joints, with varying levels of success. There are several types of steering systems, but the rack- and-pinion has become the most popular because of its simplicity and precise response. Now if you don't have a second set of rims, so you have to pay to mount and balance the tires, you might instead rotate the 3-season tires one spot at a time so you can see if you can isolate the vibration. For over 40 years, Garden Spot Frame & Alignment Service, Inc. I would love to get new tires (these are 6 years old) but you know I'very got to save up some pennies for that. Below are the most common (but not the only) causes of noise and vibration problems: Mounting-Balancing - Tire+wheel assembly is out of balance - Requires a tire balance. 2000 Frontier drive shaft vibration. Go to a shop here in Denver, get new MOOG u-joints pressed in, and the drive shaft balanced. Front axle 2. Let's examine the argument a bit closer. Multiple vehicle components could be the culprit, and diagnosing the problem can be time-consuming. We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon. it's almost a "thunking", kind of feels like i have an almost flat tire. The 1-pc virtually eliminated my vibration. Shimming the rear universal joint seems to help a little, but the vibration is still there. I left my shop and felt a slight vibration, then when I got on the highway, 70-80mph, the vibration is terrible, sounds and feels like when u ride over the rumble strips on the. By dividing the 1771 rpm of the driveshaft by the axle ratio of 3. Perhaps just changed the vibration from 45 to 55 mph. For example, if speeding up or slowing down reduces the vibration, it is often a tire balance problem. Plus I had the same rims and tires on before the lift and no vibration. Re: wheel bearing or tire noise? Some months back I had what I thought was a wheel that had thrown a wheel weight. I have the 2nd set of tires on, Bridgestone Ecopias. I'm going to try and consolidate all the information I can from myself and other members of this forum into one thread. The baseline vibration consists of the engine, the clutch, the 1st gear pair, gears integrated on the input shaft, gears splined on the output. 2008 Yukon SLT 5. Differentials - can cause car to shake? be a source of car-shaking vibration, or is this a driveshaft problem? the car in drive with the drive tires jacked. 110" of runout on the short front section forward of the middle bearing. tires just balanced. Driveshaft vibrations will be a higher frequency vibration. Wider tires need a wider frame and fork to accommodate them, as well as a wider brake that can fit over the tire to reach the rim, so you usually can't throw hybrid bicycle tires onto your road bike. The availability of options leads to some debate over what's the "best" way to fix a. Ultimate CV Axles and drive line components for a wide range of OEM and custom applications. 2013 toyota sequoia platinum, suv 4x4, this2013 toyota sequoiaplatinum might be just the suv 4x4 for you. Don't think it's a flat spot. With more than a century in the tire industry, we know that tires matter, and we're committed to proving it. This is the vibration you feel as you speed up and slow down. He felt the rear tires and didn't notice anything out of ordinary. Greasable U-joint Greasable or lubed style U-joints have several disadvantages. TOKAI Solid Tires & Tracks are made by Mouldmate Company Limited in Saraburi Thailand, using natural Thai rubber and decades of homegrown Design, R&D, Compounding, Testing, QA & Production expertise. If the vibration has been eliminated with the wheel and tire assemblies removed, focus on the wheel and tire assemblies as the source of the vibration. This ensures a properly tuned driveshaft that reduces vibration and efficiently transmits power to the wheels. Even thought maybe it was the wheels. Everything shifts good runs out good etc. In many ways, you're left guessing and you end up throwing parts at the problem. The solution to this problem is to balance your driveline. The drive shaft has in excess of. 2013 EX-L FWD w/ 136k miles. Refer to the 1999 Ram Truck Service Manual page 3-3 for propeller shaft and u-joint driveline vibration diagnosis. Search all Toyota Tacoma recalls to see car seat recalls, safer car recalls & more. Seems to be always present a little bit, but it's bad above 63 mph when OFF the gas - there is a loud deep rumble (like a rumble strip) and accompanying vibration. Ordered from local tire dealer. I read the vibration tsb and this is definetly not a tire balance problem. Diagnosing And Repairing Wheel Vibration. Re-assembling a drive shaft out of phase is the #1 cause of torsional vibration that “all-of-a-sudden appears” in your application. u joints aligned with each other. 5"-3", similar to the front. I just wanted to join in the fun. Give him a chance to diagnose and fix it. The dealership has ruled out front end, wheels, tires, rotors, and drive shaft/line They are asking Ford engineering for help. I read all of Skippers past posts regarding driveline vibration and what he went thru to get to a good ending very interesting. In order for a vehicle to operate properly, the tires must remain in balance. 100 miles and no shake at 60. I had a neighbor press both out and I put the new ones in, now I have a huge vibration at 65MPH. I have an 03 E-450 Ford 30 ft MH (w/23,000 miles) with a two piece driveshaft. Any input on a cure? Im going to try to put in a shorter transmission mount. We all knew the severe vibration I experienced with my Paramount 8. Doesn't seem to get any worse. You can see more picture of Toyota tacoma drive shaft vibration in our photo gallery. Not felt in steering wheel much, more through seat. I took it to a goodyear tire this past Saturday and they warrantied my two rear tires for me. For a two door wrangler the maximum lift should be 2. Vibration is not consistent and appears road surface dependent. post a photo of your drive shaft that includes t/c and axle pinion. By Mouldmate Co. It happens between 55-70, comes, goes, stays for the most part. When I accelerate, the vibration can be felt through the steering wheel and floor mostly. Drive Shaft Noises. Have had 3 diffent mechs adjust the clutch all 3 say it still looks brand new? Suspension is walking beams in the back so no air ride. I had a neighbor press both out and I put the new ones in, now I have a huge vibration at 65MPH. I am stumped. A vibration felt through the center floor of the vehicle can be caused by cracked and/or shredded driveshaft flex discs, resulting in excessive driveshaft movement. Vibration while driving might be a result of driveline vibration, or the interruption in the operating positions of your driveline. Beware of vibration problems! Honda is aware of this problem and have a name for it - harmonic tingle. 5L, BMW E34 535i M30 3. Worn out u-joints or bushings can cause the driveshaft to vibrate. So far so good. Vibration while driving could be due to driveline vibration, or the disruption in the operating angles of your driveline, however it might also indicate issues with an unbalanced or under-inflated tire. 55 axle, the driveshaft spins 3. When you are trying to diagnose a vibration, always check the wheels first, then the tires, followed by the alignment and suspension. At this clearance distance the driveshaft yoke at the T5 has about 0. Sure enough, at the same speeds I was getting the vibration, the rear axle would "shudder". The way to tell the two problems apart is in most cases a worn u-joint will cause vibration during acceleration or deceleration. It's possible that the sounds you're hearing are not differential-related. It seems to start after a really hard acceleration. Any ideas would be helpful. I've had 2 alignments done. Vibration at 30 MPH definitely sounds like driveline (at that speed, tires are spinning very fast, so balance/roundness issues feel like a shimmy at slower speeds). However, it could also imply problems with an out of balance or under-inflated tire. A loose tire not only causes vibration but can also lead to major accidents. From what I have heard the drive shaft for this car cant be balanced. The Centering Sleeve (or guide bushing) # 26 11 7 526 611 is the bushing the installs into the nose of the driveshaft and it centers the forward end of the driveshaft on the end on the transmission output shaft. The shims are angled to make it so your rear diff is pointing up so there isn't a big bend where the driveshaft meets the diff. Manouchekian recommends balancing tires once a year so they won’t get off balance and cause vibrations. I also have a slipping of 1st to 2nd when taking off really slow like in a parking lot. And a good afternoon to all! I finally got around to finding a local drive shaft shop in Tampa and decided to pull my rear shaft for a balance. At this clearance distance the driveshaft yoke at the T5 has about 0. bring movie night to your vehicle with the dvd entertainment system. Any thoughts as to whether it's a driveline problem or a tire imbalance, and/or how to accurately diagnose between the two? The RV dealer has no clue about what to do. I read all of Skippers past posts regarding driveline vibration and what he went thru to get to a good ending very interesting. Find our best fitting driveshafts for your vehicle and enjoy free next day delivery or same day pickup at a store near you!. Bolt the winter tires back on and if the vibration is gone, you know you need new tires. In order for a vehicle to operate properly, the tires must remain in balance. Main series truck tire products: COURAGIA ADVENTURE series, light truck series, van truck series. Simply remove your entire drive shaft extending between the rear PTU (power take off unit) and the front differential including both sections (containing 3 universal joints in total), then send it to us. “A lot of times the vibration will occur between 20 and 40 miles per hour and again at 60 or 70 or more,” he says. shakes the whole car quite violently. I called my dealer about it and the guy on the phone said that they had had that problem in a few others, always V6's and that it was the tires on those models. Hope you get some restitution, sounds like you got a bum. I hope this is not tranny/clutch related. UAJ—Universal Joint (Drive Shaft) Angles: Torque/vehicle speed sensitive, mechanical/audible vibration. They also said they spun the drive shaft and front shaft and it is good. Seems to be always present a little bit, but it's bad above 63 mph when OFF the gas - there is a loud deep rumble (like a rumble strip) and accompanying vibration. I had a vibration at 70+MPH. 75 inch diameter tube, Rhino Driveline Prop Shafts are seriously indestructible vs OEM's. Irregular tire uniformity can cause side-to-side motion during speeds up to 15 mph (24 km/h). If a wheel is out of balance, it will cause a vibration that can felt in the steering wheel and/or seat, while a wheel out of alignment can cause excessive tire wear as well as steering problems. Chrysler will notify owners, and dealers will replace all eight front driveshaft bolts, free of charge. Vibration while driving might be a result of driveline vibration, or the interruption in the operating positions of your driveline. I am stumped. I have had the tires balanced and rotated the driveline rebalanced and it did not change. Got tired of vibration, took it to a family recommended mechanic on Monday morning. We’ve got exterior and interior accessories, towing equipment, engine and driveline components, suspension pieces, wheels, tires, and more. You can also inquire with your dealer as to driveshaft balancing or a u-joint issue. Irregular tire uniformity can cause side-to-side motion during speeds up to 15 mph (24 km/h). A worn limited slip differential will chatter and cause vehicle vibration while turning. Hi guys,picked up a 66 belvedere 440 ,727,391s-having a bad vibration in driveline. New driveshaft, u-joints, and new rear shocks. I figured his way was mathematically proven vs the upside down/flipped w55 x-member, so it was worth the 125$ custom mount. BBB AUTO LINE may not be available in all states. Driveshaft vibrations will be a higher frequency vibration. Wheel alignment consists of adjusting the wheel angles so they are perpendicular to the ground and parallel to each other. Actually I sort of like it as it feels like an aircraft when they power on to takeoff. The back of the semi was put up on blocks in the shop and ran up to the speed where the vibration occurs, and everything was spinning smoothly. so i just got a new set of tires and an alignment, everything is nice and smooth when decelerating or cruising, but when i accelerate there is a vibration in the drivetrain. I have the jb conversations super short Sye. It starts at about 40 mph, is worst at 45-50 mph and smooths out and goes away above 55 mph. The vibration on my 2009 G37 was similar and it was the drive shaft. Driveline Vibration and How To Cure It on Lifted Jeeps This is a copy of an e-mail that I just sent to a good customer of ours, that I thought might benefit someone else, looking to eliminate driveline vibes from their lifted Jeep. How you will reduce vibration depends in part on where your drivers are experiencing it the most. Re-check the balance and runout of the driveshaft, because unbalance is the major factor in 1/2 critical virbations. I just put Geiser and Deaver +3 springs on the truck, so hopefully the good rear tires which were just rotated to the front remain good, but I'm guessing they will also start cupping due to what is likely a shock issue. It is not just at that speed but that is where I first noticed it. Pinion angle. I believe the next natural frequency is the oscillation about the steer axis but I don't remember what frequency that typically is. 1 piece shafts give a firmer feel, are lighter and eat up less horsepower. The aim of the thesis is to derive a mathematical model of the engine and driveline in a passenger car, capable of describing the wheel speed disturbances related to the engine and driveline. 50-17 on with minor triming. A weight can fall off the rim of the tire and cause vibration. If the vibration is only there with the vehicle moving, but goes away when put into neutral, it is likely a drive line vibration; begin checking driveshaft and rear differential. Replaced items: Clutch, throwout and pilot bearing, Cobra Jet pulse ring, MGW racespec shifter, Ford Racing clutch line. 73, we learned that the wheels were turning at 475 rpm, or 8Hz, at the time of the vibration—the same frequency we recorded during the road test. We have been advised that the transfer case needs to be replaced and the drive shaft balanced. When a U-joint is run at an angle the drive shaft will actually speed up and slow down twice during each revolution, due to the changing angular velocity of the U-joint ends. Balancing, rotating, check tire pressure and wheel torque, I've tried it all but no change. BUTCH MOSLEY BUTCH MOSLEY LIVESTOCK MCGREGOR, TX Posts: 16: Heys Guys Thanks for reading,, I have a 95 Pete exhd this truck has a terrible vibration somewhere in the rear. 1) I bought and fitted new shocks and this improved the ride a lot (the rear ones were in bad shape), but the vibration remained. Any help would be great BEFORE my warrenty runs out. You can also inquire with your dealer as to driveshaft balancing or a u-joint issue. The recall is expected to begin March 31, 2017. so i just got a new set of tires and an alignment, everything is nice and smooth when decelerating or cruising, but when i accelerate there is a vibration in the drivetrain. BREA I have a 2004 F-150 supercrew lariat 4x4. The vibration on my 2009 G37 was similar and it was the drive shaft. a tire "wore down"* Tire shaving reduces tire weight by a few…. The ring gear rotates at tire speed and will mimic a tire speed related vibration. At 350mi started feeling slight shudder in driveline at 60ish mph (LS2's still on truck). Get expert advice on auto loans. Reduced noise, vibration and harmonics; More Torque – Independent testing by a trusted automotive periodical showed rear wheel horsepower increased by more than 5% with only the switch from a conventional steel driveshaft to a carbon fiber driveshaft. Average failure mileage is 8,650 miles. There is a whole long list of people on the Cumminsforum that have the same problem. Vibration exists in 3rd gear or overdrive. Yeah I've been noticing this more recently. As tire rolling rates are a major factor in this condition, consider the following important items: • All tires should be the same size and brand (excluding the spare tire) because tires of different brands may have different circumferences, even if they are the same size. It does not vibrtae in neutral when I hold the rpm at 5500, so I guess that proves it's not in the engine or clutch assembly. Driveline vibrations are probably the hardest things to diagnose next to intermittent electrical problems. I now have an annoying vibration in drive train. I have tried moving the angle up and down 1 degree at a time and found that I had the least vibration when the driveshaft angle and pinion were set equally. Almost sounds like bad tires, but the driveshaft is the problem. 5"-3", similar to the front. While increasing the speed slowly without tires and on jackstands I discovered that the vibration-shake doesn't start until about 30 MPH when the sound coming from the diff totally changes. The next option that I am going to take is have the driveline angles measured. Fueled by enthusiasts, Nitto is driven to provide the highest quality car and truck tires for every vehicle on the road. For over 40 years, Garden Spot Frame & Alignment Service, Inc. Fact is, that you can not use part time 4WD on dry high traction surfaces. So beefing up parts like the transfer case with a Slip Yoke Eliminator kit as well as swapping in a stronger drive shaft can help reduce driveline vibration and improve driveline angle which makes for a smoother ride. If i tow or haul a load it does not change. The tires will also wear in a distinctive way, so check whether any flat spots have developed around the tire. They put the truck on a lift and took the wheels off and could not get a vibration, so it's not the driveline. “A lot of times the vibration will occur between 20 and 40 miles per hour and again at 60 or 70 or more,” he says. This was the answer I gave him: The 2 piece drive shaft (DS) is meant to prevent the drive shaft from pulling out under extreme axle movement. Before I put in my shims this was a big cause of my vibration. I've got a strange vibration in my truck that comes and goes. I've developed a vibration on acceleration in the front of the car. 60% of the Driveline Series Selection torque from Step 5 and the OLGR from Step 4. Still have stock 2-piece drive shaft. Occasionally at about 50mph I will get a vibration. UAJ—Universal Joint (Drive Shaft) Angles: Torque/vehicle speed sensitive, mechanical/audible vibration. The truck is stock except for leveling kit and some 295's. under "Application Guidelines" on page 8, and for Ten Series using the Driveline Sizing graph. Over time it developed a similar vibration to your Ranger, except mine is between 60 and 70 mph. under "Application Guidelines" on page 6. The bushing can be checked, after the U-joint is removed, by grasping the drive shaft at the spline end and move it up and down within the tube. At the first indicator of a problem or vibrations, have your tires and drivelines. Any help would be great BEFORE my warrenty runs out. Noticed after purchase that there is vibration like a bad tire 35-42 mph. Whether a tire patch or a plug is the way to go, a lot of drivers who have had tire problems on the road might be interested in the best way to fix a flat. The Picture above show a simple driveline and how its angles are laid out. 2013 toyota sequoia platinum, suv 4x4, this2013 toyota sequoiaplatinum might be just the suv 4x4 for you. While the lift may not be severe enough to cause issues right away, the change in angle will cause u-joints to wear out quicker/differently especially when they are old. Anything over 3 degrees at the rear axle will shorten your universal joint's life and could create vibration. At the very first indicator of an issue or vibrations, have your tires and drivelines checked out. Took the truck back to the tire shop and had two new Firestone 385 tires, these tires are upgraded from the cheaper tires from yesterday Still the same vibration. I have a vibration that seems be more of a slow shake between about 38 and 47 mph. Noticed after purchase that there is vibration like a bad tire 35-42 mph. The dealership has ruled out front end, wheels, tires, rotors, and drive shaft/line They are asking Ford engineering for help. Re-check the balance and runout of the driveshaft, because unbalance is the major factor in 1/2 critical virbations. Improper mounting can also cause a tire vibration problem. com and affiliated sites. DynaBeads is the premire tire balancing solution for almost all tire types, and trusted by our customers for over 10 years! Motorcycle tires, Fleet/ORV/RV tires, even classic cars!. The rear tires have threads showing and Im assuming its rom the tires, but I would like to know. Q5/SQ5 MKII Discussion - Driveline Vibration? - I have noticed recently a vibration in the steering wheel, and sometime felt in accelerator pedal a vibration at certain speeds and RPMs. All-wheel-drive vehicles exhibit vibration from the rear when making turns, on dry roads or at low speeds. I recommend taking it to the dealer for a check out as you are in different gears to keep the revs up and that indicates it is not tire imbalance as the tires are at different rpms in different gears, but some folks do confuse tire balance with driveshaft balance There is a service trick that can be done. Go to a shop here in Denver, get new MOOG u-joints pressed in, and the drive shaft balanced. I’ll start with the lift and explain what it did to your steering, suspension, and driveline one aspect at a time. Bolt the winter tires back on and if the vibration is gone, you know you need new tires. Next item on the list is to take the car to a good wheel/tire shop and have them look at both front wheels to make sure they are properly balanced, and not bent. I'm getting a constant vibration/rumble that can be felt (and heard) in the floorboard and through the center of the car (driveline) at low speed and rpms. this added 1k more at my lift kit. Vibration is a mechanical phenomenon whereby oscillations occur about an equilibrium point. Vibration while driving can be a result of driveline vibration, or the interruption in the operating angles of your driveline, however it can likewise suggest troubles with an out of balance or under-inflated tire. Clearly, the vibration levels at the seat track location increased when the driveline angles were changed from the nominal angle. 42 gears and 60 series tires so the driveshaft is spinning 2700 rpm at 60 mph. I have seen pics of other F-150's That have 37's on them with this lift kit, but they do not say if they had to do anything to get them on. When a U-joint is run at an angle the drive shaft will actually speed up and slow down twice during each revolution, due to the changing angular velocity of the U-joint ends. New driveshaft, u-joints, and new rear shocks. Milkmaster wrote:After extensive time and effort on balancing/rotating tires etc, I found where the vibration issue with my Ford F150 is coming from beneath the truck. I have had the tires balanced and rotated the driveline rebalanced and it did not change. And once you've heard a clunk, howl, whine, or vibration, you'll want to diagnose it. Yeah I've been noticing this more recently. This can help you decide what sort of suspension to get for your own Jeep Cherokee. We have designed the best measuring sheets in the industry. Also vibration mainly felt through pedals not much in seat or shifter and the noise does sound like its coming from the back but then again thats never accurate. According to CJ PP the Dynotech AL DS is only 18lbs which seems suspiciously light. For some reason, after reading the original post and replies, it sounds like a tire/wheel weight issue to me. 4L, BMW E34 525i M20 2. The “order” of the vibration is simply how many “bumps” it makes per revolution. The next option that I am going to take is have the driveline angles measured. Any help would be great BEFORE my warrenty runs out. He put it on the lift, started it up, put it in drive, and started increasing speed. Incorrect. Radial tires are also less prone to developing flat spots on one side when they are parked in the same position for weeks at a time, and tend to run cooler on long trips. 3 Flex - 180K miles. The car cruises nicely at 55 to 60 mph, but once the speed climbs to 70 or above, there's a vibration.