Installed these 9.4102 Universal Mount on front and under cab. (the first 4 sets of bushings) Had to make a 3" flat washer to support between the lift block and new bushings (the lift block is slightly larger than the flat washers that came with the new bushings), also moved up to 1/2" hardware on the first 3 sets of bushings. Also added a thick rubber O ring between the two bushings to help center the bushing in the frame hole. This bushing has about 1/16" to 1/8" smaller shoulder that goes through the frame. However the over all bushing width is wider than the factory ones. I did not replaced the last two sets of bushing yet because I will have to make a special plate to adapt the universal body mounts.