I am currently running the 7.5 rough country with 35 1250 18 trail grapplers and my truck rides rough as hell. Ive got a buddy with a 6in fabtech and his rides like a caddy with the same size and brand tire only in a 20. I am just wondering what the difference is. Both have strut spacers only at different locations. I think the fabtech kit has a block and helper spring in the rear but I thought that would ride rougher. If I cant figure out how to soften up my ride im considering taking the rc off and ordering the fabtech unless you guys got any suggestions. Also dont know if its relevant but the stock bumpstops are still in place and the rc directions said to cut them off. Thanks for any help in advance.