I just ordered shocks and torsion bars for my car. (Doing a big block swap) I was just about to give my credit card number to detroit eaton spring for the big block leaf springs when I asked them about bushings and install hardware. They use rubber bushings in the spring. Now I've seen places where you can get poly bushings, Just Suspension being one of them. They have poly bushings ($52), isolaters ($66) and poly shackle bushings ($forgot) for a hefty price over rubber. This kinda caught me off guard, I didnt know I needed to make this decision... so I havent ordered my springs yet and I wanted to find out what yall think about poly in leaf springs. Poly bushings in the front end are great, I know... but in leaf springs? Is this just a gimmick or is it really worth it? Other than poly not rotting like rubber I cant think of any real advantages (handling-wise). your thoughts?