Abs Light/tall Tires

[jetjky]

I have an 07 Z71 Silverado(new body style) that I ordered from the factory because they werent in the showrooms yet. I added a lift kit/35" tires. I used a Superchips programmer to input my new tire size. My ABS light comes on at 50mph. My ABS light does not illuminate when I program it to 31" (factory size), but my speedo is off. Superchips tech guru says I have a heavy-duty ABS system and their programmer will not work. My question is..is there any way to convert my truck to a non hd-abs system? The Diablo tech says I have a 5 channel system instead of the normal 3 channel system. Is this true?

[Carder09]

not sure what the extra channel could be but the other four would control each wheel individually so it could be that the fifth channel controls the engine for traction control so yeah it is possible, best solution could be go to a custom shop and see if they can get it tuned or your best bet would be to contact BlackBear Performance and see what Justin can do for you.