Ken You will never see me sample Oily crops as i hate the stuff and see what it does to most guys.Not gettin mellowing either,just sick as a dog and gettin real bored with hangin around. The 80's rear works great,Unless i dump all the air out of the air ride and run it down on the bump stops the tires never come close(i suspect you will never run it that low).6 lug plus in the 80's you can find 2:73's to 4:11's just check the axles as the bearings stay in the housing and ride on the shaft .Have seen some that are worn pretty good.(takes about 20 min to remove both axles for inspection) I have welded them up and cleaned them back to size on the lathe but it may not be the best idea . The 2 wheel drive is the same but it has 5 lugs(easy to redrill) Watch out for the vans as they are much wider.I would never cut your 35 as i have not seen to many.But the 49 would be history to many of them around . grin