Offset Shackle Install Questions

Your best bet is to get the kit from Mancini.

I have the same kit on my Dart but it came from Direct Connection back in the 80's. The only mods to the car is you need to drill a 1" hole in the frame rail to clear the front leaf spring bolt and relocate the spring perches on the axle housing. It only gives you 3/4"-1" of extra clearance on each side though.