Question about Chevrolet Suburban 1500
The front drive shaft is always spinning even when the 4X4 is not engaged so I would have that checked for balance as well as the rear shaft, check in the phone book for shops that do drive shaft balancing in your area, just changing the U joints will not cure an out of balance drive shaft, drive shaft balance issues are a very common source of this type of vibration. The other source of a vibration like this is the transfer case itself can cause vibration in the drive line at highway speeds so don't overlook that as a possible cause of the vibration.
Posted on Jul 01, 2011
I tolk with my techincian and they said that exist the possibilitie of installed the
wrong U-joint on the rear of the driveshaft... are you check this?
Apparently your rear driveshaft yoke could been splayed open and the U-joint can slide from side to side in the joint and cannot be perfectly centered. The mechanic said that while he had the driveshaft off, he noticed noises and excess play indicating that the pinion bearing in the rear differential was failing. He recommended the rear yoke replacement plus the rear differential rebuild, particularly since this Suburban has 200K miles on it.
Check, test it and keep us updated.
Posted on Jun 28, 2011
A couple of things come to mind. Have the wheels and tires been balanced properly? What kind of kind of tires (i.e. oversize, all terrains, low profile, "cheap") ? Have the wheel bearings been inspected for damage? It sounds like a lot of other things have been looked at but let's go back to basics to make sure we cover everything. Let me know.
Posted on Jun 28, 2011
Have you looked at your wheel bearings for scoring? It sounds like one or more of your wheel bearings is seizing and therefore at high speeds is resonating more than at low speeds. I would pull the bearings and make sure they are not scored and that the lube is still maintaining the thick viscosity required in order to keep them lubed. Look for black marks on the bearings and verify the races do not have any scoring, pitting or cracks. This is the only constant, based on your description, that makes any sense. The problem is know which bearing it could be. I would obviously start with the rear as this is the primary running wheel, 4X or 2X.
Posted on Jun 27, 2011
Have you had all the wheels balanced? Have you checked for a bent axle?
Posted on Jun 29, 2011
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Posted on Jan 02, 2017
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