3785597 | GM H052 / HO52 Gear Set – 4.57 Ratio (1949–1972 Trucks, NOS)

3785597 | 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 the standard method used by Dana Spicer / Eaton.

Call to confirm availability: 419-522-3320

Key Specifications

• Part Number: 3785597
• Type: Ring & Pinion Gear Set
• Gear Ratio: 4.57 (32 ring / 7 pinion teeth)
• Ring Gear: 32 Teeth – Part #3785597
• Pinion Gear: 7 Teeth – Part #3785597
• Application: GM H052 / HO52 Differentials (1949–1972 GM Trucks)
• Condition: New Genuine (NOS)
• Warranty: Sold As-Is, No Warranty

Applications & Fitment

Designed for GM H052 / HO52 differentials used in 1949–1972 GM trucks.

Important: This gear set will NOT fit HO72 / H072 differentials — the pinion does not have a snap ring groove at the pilot bearing. Always confirm your differential model before ordering.

What’s Included

• 1 × Ring Gear – 3785597
• 1 × Pinion Gear – 3785597
• No hardware included

DPX Drivetrain Tools Hub

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Road Speed Calculator • Gear Ratio Charts • PTO Shimming Guide • Full IPL Library →

Shipping / Location

• Ships from our Mansfield, Ohio warehouse (419-522-3320)
• Parcel or LTL options available based on packaging and weight
• Warehouse Bin Location: DPX_OH_BR549_GMC

Heavy-Duty Solutions — Built to Perform. Trusted to Last. Discount Parts Exchange (DPX).