I have an 04 reg cab short box 2wd 4.8l 5 speed truck. I had to drive from Minneapolis to Oklahoma to get mine (bought it new in oct of 04) I've stored it every winter and last summer swapped in a cammed and headed 6L with long tube headers. It lays down so so power but is fun to drive with the 5 speed in a relatively light weight truck.
When it was new (already ripped off the crappy door mouldings)
6L swapped in:
As it sits today:
Let me know if you guys have any Silverado questions. I know these trucks inside and out. (literally)
Power it lays down at the rear wheels