https://www.facebook.com/marketplace/item/1374302991290582/?mibextid=wwXIfr
This a 2008 Chevrolet 2500 HD with 6.0 that’s being parted out in Missoula which is close to me. I inquired about the rear axle which should be a 14 bolt Full Floater G80. He checked by VIN# and it’s 3.73 gear ratio...