To reduce rotating weight, the super-lightweight diff outdrives are machined from HUDY Spring metal product which allows extra material to be removed regarding the exterior an element of the outdrives, further reducing the extra weight without effecting durability. The internal area of the outdrives is likewise hand-ground for perfect fitment in to the diff case. Made for usage with 2.5mm pin. The stronger diff outdrives would be the consequence of a brand new hardening procedure that increases lifespan and reliability. Set of 2.