T1 GMC and Chevy 4x4 trucks use one of 2 front axles, AAM and GM sourced. SOME owners of the AAM axles are having issues with the front axle making noise. My main concern is that GM seems to be struggling with coming up with a fix and I don't want to drop 50+ large on a truck and hope I don't get a noisey axle, that there's no current fix for. Thats why I searched for a truck with the GM axle. I think GM will get it figured out at some point I mean its an axle.