Originally Posted by trblmkr

So the hypertech programmer will make the necissary adjustments after switching to 4.10's if so that would be great my gears go in late this week or early next week waiting on parts...

Originally Posted by zo6freak

yea i currently have a westers tune that i am happy with so ill just send em my core and have them write a tune on it.

once i get the new tune, can i just clear the codes for the abs? I dont know if its like that dreaded crank relearn procedure i had to do...

Originally Posted by sikchevy

i swapped to 4.56's and had to do a re tune due to the abs/brake light. even though its tuned out i still pop the light every once in a while. my speedo is still off by about 6mph at highway speeds.