John the 360 has a set foreward axel when you ordered a 6-71, 8-71, cat 1674, 6 or 8 cyl cummins, However if you ordered a U or an H that 360 got some frame extensions that gave more room in the engine bay as well as room for a much larger radiator needed to cool the big 1693 or the v-12. The U's an...