98camaropower

looking for advice the car was fine except for the u joints squealing so I installed new moog super duty u joints an now my car shakes at 65mph.. I screwed up I did not mark anything as far as the yoke to the driveshaft and driveshaft to the rear end.. so I pulled the driveshaft lastnight and I noticed the yoke end u joint moves very effortless an free but the other end that goes to the straps seems very stiff.. my 2 ideas are that stiff u joint is bad and replace it ?? or did I really screw up by not marking stuff when I removed it and now its out of balance? even though on all my vehicles I have never marked them when I removed the driveshaft. I haven't dealt with much driveline vibration issues so im looking for a little help on this one.

wssix99

iTrader: (5)

Moving to Suspension and Brakes.

Have you been able to get up to 70 or 75 to see if the vibration goes away?

98camaropower

Yes it does not seem to get much better when I do 90 it gets better

wssix99

iTrader: (5)

^ That sounds a lot like a out-of-balance tire. Did you change any unsprung equipment at the same time? (wheels, tires, brakes, rotors, bearings, etc.)

I would expect driveline vibrations would not go away at speed.

MidwestChassis

iTrader: (5)

I would make sure you did not over tighten the and distort the u-joints.

98camaropower

All fixed I had the bearing caps to tightly together so I pulled the drive shaft back out and tried to push the Caps out to the snap ring work perfect now thanks for the help guys