Okay, so I got the Sammy back now with some newish springs on it. The stance is a lot better, but I did some quick measuring in the dark last night and it seems that the chassis is now level with the ground, but the body is not. The fender gaps are VERY different left to right but on an eye inspection I can't even tell for sure if the body is leaning at all or not. I'll have to give the jeep a proper checking to make sure but I'm fairly certain of it. If the chassis is not actually level, the only thing I could imagine might be causing that is the shocks. There are all new suspension bushings installed now.
Leaning seems to be a pretty common problem with leaf sprung vehicles AND body-on-frame vehicles. If the body isn't level with the chassis I'm thinking I could just get some big rubber washers and shim the body-to-frame bushings on the low (driver's) side. Good idea?
Handy facts:
- The driver's side was very visibly sagging with the old springs. The chassis was not level (by about 1" IIRC)
- The previous owner was a big fat guy.