Well, i got the cat on jackstands and did some measuring and leveling in preparation for inner and outer rockers and tboxes. So far I have the front and rear and behind the rear wheel (infront of front Tbox) all level in regard to measurements from cougar chassis book. All 4 corners level. Seemed ok, then did the measurement for front leaf spring mount and seems approx 1/2" sag at that point (right under rear passengers). Checked both pass and driver points, both measure the same. At least its consistent. So it seems to be level, and true horizontally. Got inside passenger compartment and measured kiddie corner and seems to be out of square 3/4", with a bit of a kick to the passenger side. I have the car on 6 stands, 4 being jackstands and 2 being screw type for fine tuning, I plan on getting 2 more screw type for a bit more fine tuning infront of leaf springs. I tried getting another 1/2" by the leaf spring that I was missing, but it just lifted the whole car on that side, so not sure what to do to get that extra 1/2". I thought about making a large subframe connector, front to rear out of 2x2x1/4 square tubing and jacking the 1/2" off that, so using the car itself to straighten. What do you guys think, or is the tolerance not that huge of an issue. I will be fine tuning this with micrometers when ready to do the repair, or is his just overkill.