I need to order some replacement u-bolts for my rear suspension. I haven’t pulled one off to measure as I was hoping I could easily find some but it seems the 1973 rear suspension with the isolator pads around the springs freaks people out. I know they are 1/2”diameter and 3-1/8” on the inside spread and round top. Anybody know the length? My “on my back, tape measure in hand, everything is in my way” guess is 8-1/2”? Does that sound right?