Ring and Pinion 3.89 Spitifre 71 to 80, GT6 Mk3

This is a Ring (Crown Wheel) and Pinion set for Triumph Spitfire with a 3.89 to 1 ratio. Very high quality gears made in Germany. ***IMPORTANT for GT6 Owners*** This unit will only work with the 21H5478 Carrier (Differential serial number range of FH1 to FH106100)