I have a 2013 gmc z71 cc duramax, i have a gulf stream aztec i have the rock tamers to protect the front of the trailer i am wondering how it will work with the diesel when the truck goes into regen ...
The thing about the GM trucks, which is unique to them verses the others (Ford, Dodge) is that the megaphone exhaust exits under the rear bumper, out the back, not so much to the side like Ford and Dodge diesels do.
I'd be skeptical about running Rock Tamers on my 09 D/A