Hey everyone im new to the forums here and have some questions. I am looking to build up my weekend warrior. It is an 03 gmc 1500 with 6inch lift and 35" tires. Drivetrain and motor are stick except for CAI and exhaust. I need help on how to make this truck as fast as possible on a semi budget. I was thinking new gearing like 4:56?, cam and maybe supercharger kit down the road. Any suggestions would be great.

 

Gears is a great idea. Also an 80e swap with 2800 stall.

 

Glad to see someone else is building a monster out or their big truck I'm on the same search you are, about to buy my LS9 cam all the little goodies to go along with it. Granted I'm starting out a step ahead with a 6.0 and 4L80..

 

mine is more then a budget build but it moves very well for a big truck
if you want the most bang for your buck gear wise then 5.13s will tie you over till you add power

 

Man I bet your truck will friggin' move!

 

Tag, I built a Lifted truck. I drive it daily. It will move fairly well.

 

What kind of mileage are you getting with all that work and gears? Sorry to steal your post OP.

 

Here's my setup: 99 Silverado ECSB 4X4, LQ4, Patriot Stg. 2 243's w/ 59cc chambers, TR224-112, Pacesetter LT's, Nelson tune, FLT Lvl 5.5, PI 3400, UD pulley, E-fans, 6'' Fabtech lift, 3'' body lift, 37'' XTerrains, 4.56's, 4'' shackle flip 13.3 @ 99mph on 37's or 13.0 @ 101mph on 31's

 

What exactly does the underdrive pulley do?

 

your truck is one of the reasons I started adding power.
my wife probably hates you but I still think you are a pretty good guy. lol