how much of a gain will i see going from 3.42s to 4.10s after a long time they will finally be going in the truck by next week. how much would it lower my e/t in the 1/4

 

Don't know what your setup is but my truck did this with NO other changes whatsoever, less than 2 weeks later. Kinda blew the old load the turbo theory IMHO.
........................60'.......1/8mi
Before 3.42........2.38......9.55@76.12.....82 deg.

After 4.10..........2.09......8.90@79.91.....89 deg.

 

Yes, they will help. I did the same thing and its like night and day difference.

 

recently went from 3.42's to 4.10's as well, more than happy with the overall installation and performance

just need a damn retune!

 

I started a thread about this before.
.5 sec in the quarter mile a popular answer.

I just did it.
I wish I had done it a long time ago.

 

Hey can someone point me in the right way cause I dont know anything on the gears all I know is my tahoe is stock with 3.42 and I wanna move up but dont know what to. My tire size is 305/35/24 if that helps. I wanna know what all im gonna need and where to get it. Thanks and sorry for the tread jack man!

 

I went from 3.23's to 4.10's and holy hell why didn't i do it sooner. hell my freeway mileage even went up. it is worth every penny and then some

 

What he said.

 

i wish i gained a .5 sec going from 3.73's to 4.56's

 

how much did the gas mileage suffer on the highway compared to 3.23s