I just had a set of 3.73 gears installed in my 2005 Chevy Silverado 1500 2WD. The problem is that it throws a speed sensor frequency error trouble code and says "service brake system" while driving. I find this strange because I have already programed for those new gears with a Hypertech power programmer and the speedometer is spot on. I have no idea how to remedy this. Any help would be greatly appreciated!
