got it - to add further irregularity, it looks like the rear end shifted somewhere along the way and the right side is about .5" further forward than the left. Since its all coming back loose for the drop kit, will need to recenter it not only from side-to-side but fore-and-aft as well, check the pinion angle, and commit the perches.
The rear end will adjust forward and aft, I assume centered in the wheel well is best? Also, for a non competitive street driver, is pinion angle that critical?