Jamie's CM originally had a 3.5, 4 Pinion single Wheeler open Carrier Borgwarner with 25 Spline Axels. Due to Jamie's "slippery back wheels" he bought the diff to Shane with twisted axels and a very badly worn centre. Shane then replaced his twisted axels with Billet 28 spline axels a new LSD 4 pinion 3.5 centre as well as replacing every bearing and seal and using high quality LSD oil.