I used to daily drive an '03 Silverado with a 4.8. Check out my thread in my signature. If it had a manual like yours, I'd probably still be driving it but manuals are damn near impossible to find behind a 4.8L.
Grill block is very simple, I would start there.
The Tahoe has the same nose as your truck and later got a nice, low air dam (my wife's '05 Tahoe has it). You could try finding one in a junkyard and bolt it on for a nice factory look.
Do you have steel wheels or aluminum?
Good luck!
|