1972 1 ton project

[Moin]

Hey everyone I picked up a new project also completely new to trucks. It's a 1972 c30 with a flatbed. The truck is in very good shape and also drives. My plans are to lower the front with drop spindles and leaf over axle for the rear. For the drive train I got rid of the 4 speed and Chevy small block and picked up a 2002 duramax setup. The one thing I didn't understand is the rear is a dually and the front isn't. I believe someone must of swapped spindles and rotors to a 3/4 ton. I know it's a true 1 ton because of the vin.
Thanks everyone