i might not fit in here but im on a 5.3 on just 3.73s and 30.5 " tire ran 2.18 60' and 9.3 1/8mile.. u should put a 3200 circle d stall.. that should take care of ur low end... and 4.10s all around.. i bought mine for 270 front and rear.... after stall and gears im going to track thursday to c if she improved.. hoping for under 2s on the 60'

 

could it be your full exhaust,lt's-off road y pipe.my DA was 3000 that day (approx)

 

It doesnt matter if I run thru the exhaust or open the cutout, my 60' doesnt change unless I spin more. With the cutout open I usually gain on top end 1-2/10s.

 

so u don't think the full exhaust it helping your 60'.I tried preloading the stock conv. and just stabbing the gas 2.51 is the best.and thats just leaving off idle.what would u do different as far as driving goes?

 

the 26" tall tire is whats helping the 60ft time

 

pulling the about the same 60' with 30" tires due to no wheel spin. I leave at idle with some wheel spin with the 26" tires, I cant stall it up any because it just blows the tires off, even the 26" tires are just street tread, no drag radials. I am going to buy some drag radials, then I can bring the rpms up into the powerband a little and I should be able to lower it a little more. I assume your 60' is suffering because of the extra weight of the 4x4, but it should be fairly close in weight to my ext cab.

 

how much did the headers help? Do you think they lowered your 60ft time?

 

Well, I put the headers on, a different cold air intake, and the updated tune on all at the same time and I dropped drastic time.

 

good tuner make your 4.8 screem 6500 or more.

 

I know you want to save your trans but did your tuner remove torque management? (Your tuner having a tuner car background may not have done this) That could help your off the line times if it hasn't already been removed.