I have searched and read, here and HP website.

I have a bone stock 2000 siverado 2wd. 3.73 gears. I put on some 16x10 wheels and tires that measure 26.75 inches tall. Used my hp tuners to correct tire height. That is all I changed, except hitting the autoscale all tranny tables box. I am getting ABS and BRAKE lamps coming on now and then like I have just changed the gear ratio without retuning for it. The speedo is right, I verified with a GPS unit. I am just wondering if I was supposed to do something else....

Thanks
Brian

 

What is the tire height of the fronts?

 

all 4 tires are the same size. Will look in hp tuners tonight and see if anything else is there..

 

I'd start by scanning for ABS codes, and go from there.

 

try changing the box that says "gmlan" to "calibration"

 

Post up the tune file and scan it to see if any codes come up. i'll look it over and see if i can offer any help.