I've come to the conclusion that I may have a serious issue with my drivers side spring pocket. It's a little hard to tell in the picture but the left sits about 2-2.5" lower on the left.
My '66 has been losing left-rear ride height all year. On the last long drive (maybe 80 miles) it seemed to get even worse. Kinda sucks because I've done new springs, bushings, 12-bolt posi and Hotchkis shocks back there. It's all less than 2000 miles.
Today I checked underneath and everything was basically in order and in place but I can feel the top coil of the left-rear spring popping through the top.
I was assuming I could remove the springs (or let the rear drop free, and then try to weld up a thick piece of new metal up top. This is a cramped area on the '66.
I'm just wondering if anyone has seen this before and if it's going to be the PITA that it looks like it might be.
Rusted pocket implies a rusted frame. The frame holds the whole car up.
IF it is failing due to rust you have yard art not a drivable car. You need to examine your frame not only in the spring pocket but along the whole frame rail looking for holes or areas where the metal has thinned due to corrosion.