I would not run the gear diff in the front as when i trial fitted one in my car it makes the belt sit at a funny angle which i would assume cause's all sorts of problems the more power you have. The car is known for chewing belts in modified as it is anyway. Also the bottoming out in the low diff positions is a pain in the ass if you do not run on any high levels of grip as you need the low diff positions to get good traction.