I built a custom engine crossmember on my truck to use 1 1/2" bushings. I was wondering if ORD had any bushings available that were softer than their urethane suspension ones. I built my motor mounts out of 2" 1/4 wall round tube stuck on some 2" 1/4 wall square tube. They will be for a 6.2L diesel. Also, what are the bushing sizes for a set or 56" rear springs off a 84 chevy 3/4 ton? How about a set of 63" rears from a 91 C/K series 1 ton dually? I looked on the website and it said the 1 tons are unpredictable but I'm just wondering. I am definately going to measure before ordering anything though, the last time I didnt and ended up getting the wrong sized bushings twice before finally getting the right ones. Also, are the urethane transmission mounts the same height as factory ones? I am shooting for the flattest belly possible and am going to build a custom crossmember for it. Thanks.