1986 Chevy Silverado with 8" Superlift lift kit, 3" body lift

1986 Chevy Silverado with GM 1 ton axles, 4.10 gears, 366 school bus motor, 8" Superlift spring lift kit, 3" body lift, 36" Goodyear military tires on 16.5x8 wheels. I’d like to throw the Goodyears in the trash and get 39.5 Boggers, 16.5x12 steelies, and 5.13 gears. Mike DiFalco, Kresgeville, PA Link to Chevy, GMC Straight Axle lift kits Link to Chevy, GMC Straight Axle body lifts