3785597 | GM H052 / HO52 Gear Set – 4.57 Ratio (1949–1972 Trucks, NOS) PERKINS Tractor-to-trailer air-brake connections

Tractor-to-trailer air-brake connections

External Drainage

750"–34) and ratio/tooth count before installation

it may show minor signs of shelf wear from long-term storage

Function: Prevents fluid leakage in compatible drivetrain and hydraulic components

3785597 | GM H052 / HO52 Gear Set – 4.57 Ratio (1949–1972 Trucks, NOS) PERKINS Tractor-to-trailer air-brake connections3785597 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