I have a49 Willy's body on a mid 70's Jeep chassis, 74 Ford Dana 60 rear axil , 77 Jeep Dana 44 front axil with 3/4 ton hubs and rotors. Jeep power steering. 1984 GMC 6.2 L diesel, Chevy SM 20 4 speed with the cast iron all gear transfer case mid 70's not sure of year. I've bought this truck in...