Barracuda rear shackle question

I'm seeing more movement be spread across easily replaceable rubber bushings versus failure of the 2 little bolts in welded nuts to the car.

the inner wheel wells are the limiting factor on mine also. READ NON BELIEVERS. I bought my front spring perches off a guy that said they wouldn't work on his a body. I DID have to enlarge a stock hole in the frame for them to fit, the bolts were a ***** ! where he got these things, I cannot say, sorry yours aren't that good :finga: