. Pics of Tim Harper of Shay's (son-n-law) 56 Willy's in Moab. The body sits on a 1/2 ton Chevy frame with 21/2 ton Rockwell axles, 672 gears, lockers front & rear, four link suspension, fuel injection Chevy 350 powerplant, full roll cage, 44" super swampers. After a 3 year build-up Shay says, "...is pretty much unstoppable, completed some of the toughest trails Moab has to offer."