3785597 | GM H052 / HO52 Gear Set – 4.57 Ratio (1949–1972 Trucks, NOS) 13 SPEED designed for use with Mack

designed for use with Mack manual transmissions

Designed for axial load support

Commonly used in select vintage Massey Ferguson tractor instrument-panel applications

Compatibility: Fits Volvo Penta MG502 and IRM220 gear systems

3785597 | GM H052 / HO52 Gear Set – 4.57 Ratio (1949–1972 Trucks, NOS) 13 SPEED designed for use with Mack3785597 GM H052 HO52 Gear Set 4. 57 Ratio New Genuine (NOS) New Genuine 3785597 Ring & pinion gear set for GM H052 HO52 differentials. 4. 57 ratio (32 ring 7 pinion teeth). New old stock (NOS) unused and in excellent condition. In stock and ready to ship from Discount Parts Exchange (DPX) in Mansfield, Ohio. How to Calculate Gear Ratio: Divide the number of teeth on the ring gear by the number of teeth on the pinion gear (e. g., 32 7 = 4. 57). This is