Several things
I recently replaced the rear bushings. All I can say is... WTF? Why is it that Dodge used so many different bushings and bolt sizes on these things? After two incorrect Stealer special orders (and three weeks) I gave up and went right to a spring shop. One would think it would be cheaper to standardize things for the half a cent they must have save on a D150 straight six.
Anyway, you need to measure YOUR bolts and bushings so that when you call Velvet Ride, they can tell you whether or not these units will fit YOUR Dodge.
My bushings are 1. 5"OD x . 75"ID x 2&7/8"L. My stock shackles have no offset but I think some did.
Mike O.