Just buy a real truck. :kidding:Racer13x said:I have a 99 GMC 3/4 ton with the 5.7L in it and need more towing power. I never have enough power. I tow a racercar every week to the track. I was going to buy a HYPERTECH power programmer III and was asking for advice on what to buy to tune this truck up?
Yes im getting a exhaust put on true duals i dont know what gears are in it. How can i find out?jebx said:What gears do you have in your truck? For towing that is potentially one of the best mods IMO. Gives you the low end grunt you want.
Is the truck stock, as in stock tires, suspention etc?
so if i have GT4 and the G80 it posi with 3.73 gears. is it possible to have it like thatjebx said:Look in the glove box and there is a sticker will all kinds of 3 digit codes. Those represent every option on the truck.
GT4 = 3.73
GT5 = 4.10
GU6 - 3.42
GH0 = 3.54
GU4 = 3.08
G80 = eaton locking diff (posi)