Severe Wobble

[orlowted]

I believe I have found the cause....I put the car up on jacks (like it was suggested) and started it up , put it in first gear and watched the drive shaft. It was loping very bad and shaking. I checked the U-Joints at the rear and they were literaly falling apart. That was the cause, so I bought new U-Joints, but have not installed them yet. Here is the question....

The new springs were not stock at all - 5 leaf heavy duty and lowered the car several inches. I am sure this effected the angle the driveshaft connects to the rear. If so and I install new U-Joints am I going to have this same problem??? I still have the original springs but do not want to put them back unless I really have to. Is there a way to make this work. It is also possible that the U-Joints were just bad to begin with. If I install the new ones and put the drive shaft back on - should I be able to tell from spinning it? It would seem that if it spins freely without any obstructions that it will be OK.

Thoughts...and thanks for the advise.

TJ