by KTA » Wed Aug 01, 2007 6:12 pm
Is your truck 4.10 geared? If its 3.54 you will find you don't have enough motor to pull 3rd low. 3rd low with 3.54's is an 11.5 final and that is a ton of gear. 3rd low 4.10 is a 13.42 and that is perfect for some hooking tires and about 550-600hp. For the kind of power and torque a 1 gen makes you really need about a 14.5-15 final. You really need about a 4.58 rear gear to pull 3rd and keep it where it needs to be if you have much tire.
Fleet of Junk: 1989 D350 627rwhp 1300 tq B-1/Hx60 twins, KTA pump/injectors, ported head, BIG fuel supply. 13.75@ 109.5mph 1/4: 1992 W350 Cab-chasis, 1993 W350 ext cab cust.370 inj Hx40/16cm 290rwhp hydroboost brakes,1984 D350 crew-cab another project.