My truck started out as a bone stock regular cab pickup. But its got a lot going for it, it rolled off the assymbly line with a 4.3L V6 and a NV3500 5 speed transmission, and the Super-rare 3rd shock option (a shock mounted horizontal to the frame and attached to the rear end).  I have since added a complete ZQ8 suspension including wheels, MSD Blaster HEI coil, and a cold air intake system. I'm thinking about upgrading the exhaust next with 2 1/2 inch pipe from the manifolds to a 3" flomaster Y-pipe collector out to a Hooker Aero chamber muffler.