Spacer plate in front of leaf spring hanger

Yea, there's no way that was factory.
Like suspected it was probably to square up the rear so the car didn't dog track, or to clear a tire.
Don't look factory to me, but have any of you guys ever seen how the trans tunnel looks on some 4 speed A bodies? The factory cut some of the auto. humps out to weld in the 4 speed hump, it looked just as bad ! I had my orig rear front hangar bracket left over after installing the 3/4" offset rear spring hangars. I cut the orig. ones up (neatly) and used them for reinforcements. One in front and one in back of the frame mounts, 1/8" Is all that mine was off. Many cars came out way worse, up to a 1/2" off in many areas. And yes, the 3/4" are actually 3/4" , for those of u that want to argue ! Took some doing to get them in there !