Hello everyone have not post on here for a while,my 4100 has a 415 SBC motor and a 700r4 trans,a 1981 daully rear end with 410 gears, I welded some plates in the wheels with the 8 lug bolt pattern drilled out the holes, going to make the front 8 lug also , to mount 22.5 later on with 8 to 10 lug addapters,well soon have power brakes,have bought a out side visor for the old girl,and a few other little goodies like gauges, bright head lights ,head light visors, window visors, lokar 33 inch shifter, hope to have her on the road soon