My truck is a 2000 chevy S10 regular cab pickup with a 4.3L and a 5 speed manual transmission. It came with a factory G80 Eaton locking differential. It also came with the YC3 or third shock option which is supposed to help the truck hook up and eliminate wheel hop, it doesn't help much with hooking up the truck will still break the tires loose when shifted to second under full throttle. I added a complete ZQ8 suspension package to it including the steering box and wheels, I also added a round K&N air filter and a flow master delta 40 muffler. I recently ported my throttle body a little and removed the alluminum baffle from the throttle blade, this mod was easily worth 10-20 hp, seat of the pants not dino.