I just bought one, and I do not know how to setup so I can change the tire size? I also have the stock gears, and it asks for that, are the stock gears 3.88?

 

Need axle code on door sticksr to find out code.....just turn trucks key on but do not start plug in edge cable and edge then go through the steps and when you select to customize program go to tire size and put it to whatever you want the manual tells you how to calculate it but trial and error will happen before its perfect....you can download instruction manual from edgeproducts dot com

 

Thanks