Here's my 83 flat bed and my new 79. There both 4wd. The 79 has a 4 in lift with 35's with 3.73 gears. All stock motor connected to a th350 with a stage 1 shift kit.
The 83 is on 31's with a 4 speed connected to a 355 with forged and balanced scat crank and rods with keith black hypereutectic flat tops with double hump heads, lunati voodoo cam 60103 268/276 duration, edelbrock torker 2 intake with the good ol quadrajet on top. Oh and its got a wild cherry stained wood bed.