We carry a full range of ratios to suit the M86 diff fitted to all XR6 Turbos, G6E, XR8, F6, GT, GTP, Pursuits, Super Pursuits, Typhoon & Tornado’s in sedan and utes. Changing the diff ratio can make a huge difference in performance. This job can be carried out by most mechanics or you can give it a go yourself, The gear set comes with instructions. Our gears are ground to original specifications.