Abs ?

[Zbudman]

I have an 09 1500 Silverado, reg cab, short bed. I lowered it 4 inches in front and 6 in back. I'm trying to fill the rear wheel wells with more tire. I would like to run 275/55-20 in rear and 285/50-20 in front. The ABS/Trac control will not accept the size difference.

 

My question is, Does anyone know how to achieve this? No one makes a programmer for this.

[ChevyTech77]

It's not a big enough difference in size to warrant it. Plus, the front size that you want to use never was a factory size so the ebcm is rejecting it. Leave the ebcm tire size the same front to rear, trust me.