3.92:1 ratio (teeth: 13/51)
Jaguar XK120 with ENV axle to February 1952: OTS to 660934 (RHD) and 671796 (LHD), FHC to 669002 (RHD) and 679214 (LHD)
Manufactured from chrome nickel molybdenum to very high standards. Being made with the benefit of original drawings and are supplied with Oerlicon Sikloid gearing. Supplied in matched assemblies.