Originally Posted by diabolical
wheel bearings were done a couple of years ago (doesn't every corvette need that?) but, i did check...wheels are tight...no play.
as i stated before, tires were balanced on a hunter gs9700..supposedly top of the line.... at a ford dealer.
when i was removing the half shafts, some of the u-joint straps were kinda loose..i could remove them with my fingers...sheesh. and, i found one u-joint that was tight in the trunion. it was hard to move back and forth. so, i replaced that one and it swivels smoothly now.
so...this is what i'm figuring: (lol) since a couple straps were loose while the wheels were hanging,(this puts pressure on the u-joint). when the wheel has weight on it, the straps maybe gave enough for the u-joint to be loose. keep in mind that the half-shaft is also part of the wheel travel assembly, so, when the car is jacked up, the rear wheels kick in at a gross angle. this puts pressure on the u-joints, so it might appear that they are tight, but once on the ground, they might be loose.
anyways, when i feel ambitious, i'll put it back together later and see what happens. if the vibration is still there, i'll burn the car. lol
hey...i appreciate the help....this has been a big downer for a long time.
Patience and persistance is necessary in owing a Corvette. You will get it in the end.
On the tires, even if they were balanced, balance weights fall off. I have had them fall off on the way home from the tire shop. You can't assume anything, especially you can't assume that people will do their jobs correctly. When I have a problem like this, I check and recheck everything until I find it.