I put new Moog springs in my 67. I did all the suspension up front. I kept the original control arms even though, those after market powder coated ones look great.
Anyway, the springs I had in it before, were cut really low. In fact, it had to have 3 spring spacers in each side to keep it from sitting on the wheels.
Now it sits WAY up. It looks like its launching. I've got 90/10 shocks up front.
But now it leans. There is about a 4 inch difference. The right side is high. After checking all my work up front, I had to put a couple of spacers in the springs to even it up.
Its within an inch now.

Could this be a rear spring problem that wasn't visible before because the front springs were cut so low that it didn't have the play to be noticed?
Could this be a tweaked unibody?
Anybody else have this problem?

I took it to a very experienced old guy that does front end stuff in my area and all he could say is that it wasn't the springs or the front end work that I did.

Standing by.....
:confused:

4" difference?
dang man I would have to say that either one of the springs is not seated in the seat at all or one side was tightened with the weight on it an the other with the control arm all the way down

i dont think a suspension issue in the rear end could cause that much difference in the front and if it was the unibody or subframe you would know it...

They are both seated. I had that checked but I didn't know about the other stuff you said.

So how would I fix the other thing you mention?
Would I jack it up and take the weight off, so the control arm is down and the wheels off the ground and then re-tighten them?

Make sure the coils are properly seated in the spring pockets.
What part number Moog coils did you use?