bad shake in rear end

Asked by Aug 06, 2014 at 04:37 PM about the 1989 Chevrolet C/K 1500

Question type: General

ok I have a 89  chevy 1500 ex cab 5 speed man. It was towed about a month for a broken ball joint I just got back in town and got it fixed. I replaced both uppers and lower inner and outer tie rods. and also replaced center bearing and all 3 u-joints in drive line. now I have a bad vib in rear end when goin down the road like  tires or about to fall off everything is tight. any clues of what it could be??????

7 Answers

113,495

Bent or out of balance driveline, bent wheel.

1 people found this helpful.
285,375

Agreed, did you mark the orientation of the driveshaft before you removed it? You might be able to rotate the driveshaft one bolt at a time until you no longer get the vibrations.

yes I did so checked the wheels with it in the air and the pass side has a lot of play on the axel . I can move it in and out with no problem. also the yoke at the rear end and the driveshaft has a good bit of play side to side. so do I need to replace the whole rear end or what . im tight on money so the best but the cheapest way what would it be???? its just a work truck to get me to work and back realy but I use it to do other jobs also

113,495

The in and out movement is normal on the axles but the movement on the yoke is not. The cheapest way would be to get a used one from a wrecking yard, just make sure that the ratio is the same or your power and fuel mileage will change plus you will have to change the speedo to match.

1 people found this helpful.

ok thanks a lot I will try that

When you replaced the u joints one or more of the bearings may have shifted and fell in the cap when you attempt to knock the u joint into the driveshaft or slip yoke. You may have to take it back off and retry cautiously.

I have a 1992 k2500 Cheyenne pickup that was doing the same thing. I changed the wheels thinking my aftermarkets were not able to be balanced well and went back to stock. No change. I pulled driveshaft as it feels like a drive line vibration and only happened on takeoff and at 55+mph. I changed the new u-joints on the drive shaft thinking the same issue recommended, that some of the bearings had fallen. Low and behold, they had not bUt I carefully installed the new joints I just bought. Now my vibration is different, it doesn't have it at takeoff anymore but it does have a slight notice when I get ready to press clutch before shift and over 55mph on 4th and over 60 on OD. What next?

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