Ok, so here is what i plan on doing and a few questions to follow. I'm going 4" tuff country springs all around with 35"s and 4.11s. I was wondering a fefw things. If i put a 1in body on will it keep me from having to trim my fenders or would i have to go to 2"? I have 3.08s on 32"s right now and i am only getting 9mpg, would the 4.11s and 35"s cause that to go down or up because of the relieved engine stress? this is on a 700r4. I was also wondering if i put 1in blocks on the rear in addition, would i have to lower my tranny or is it a crapshoot? K5 just upgraded to rig status!