Timken 3730 Differential Pinion Race - Rear Inner
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Timken

Timken 3730 Differential Pinion Race - Rear Inner

Brand Timken 3730
Position Rear Inner
Fits Chevrolet and GMC · 24 vehicles

Tapered roller bearing component. Engineered for higher speeds, heavier loads, and longer life.

Handles radial and axial loads. Built for durability in a compact space.

Replace cone and cup together. Helps maximize reliability and service life.

Cross-references CSF 3730, SKF BR3730 and 1112024 for the same application. See all 3.

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Timken 3730 Differential Pinion Race

Timken 3730 is a differential pinion race for rear inner applications in select Chevrolet and GMC heavy-duty vans and chassis cabs. It is built for 10.5 in. ring gear setups with 4.10 or 4.56 gear ratios, making it a direct-fit service part for specific rear axle repairs.

Key Features

  • Timken tapered roller bearing component for differential service
  • Rear inner pinion race application
  • Fits 10.5 in. ring gear rear axles with 4.10 or 4.56 gear ratio
  • Engineered for radial and axial load management
  • Timken 3730 is used in select Chevrolet G30, Chevrolet P30, GMC G3500, and GMC P3500 applications

Detailed Description

Timken is known for tapered roller bearing components used in driveline and axle service, and this pinion race is built for durability in a compact bearing package. The Timken 3730 supports rear inner differential service where precise bearing fit and load handling are critical. This part cross-references SKF BR3730 for the same application.

Compatible With 1979-1984 Chevrolet G30, rear inner; 1979-1984 Chevrolet P30, rear inner; 1979-1984 GMC G3500, rear inner; and 1979-1984 GMC P3500, rear inner. Timken 3730 is a focused replacement for rear axle repair on Chevrolet G30 and GMC P3500 platforms with the specified ring gear and gear ratio notes.

Common Repair Uses

  • Replacing a worn or noisy rear differential pinion race
  • Restoring proper bearing surface in the rear axle assembly
  • Addressing pinion bearing wear during differential rebuilds
  • Correcting rough operation caused by race pitting or scoring

Installation Notes

Replace the inner cone and outer cup together to maintain bearing reliability and service life. Verify axle configuration, ring gear size, and gear ratio before installation. Proper bearing setup and preload are important during differential service.

Quality Assurance

Timken tapered roller bearing components are engineered for high load capacity and long service life in driveline applications. Timken 3730 is built to meet the demands of rear axle service in select Chevrolet and GMC vehicles.

This part fits 24 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1984ChevroletG30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1984ChevroletP30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1984GMCG3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1984GMCP3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1983ChevroletG30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1983ChevroletP30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1983GMCG3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1983GMCP3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1982ChevroletG30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1982ChevroletP30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1982GMCG3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1982GMCP3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1981ChevroletG30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1981ChevroletP30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1981GMCG3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1981GMCP3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1980ChevroletG30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1980ChevroletP30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1980GMCG3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1980GMCP3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1979ChevroletG30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1979ChevroletP30Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1979GMCG3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
1979GMCP3500Rear Inner10.5 in. Ring Gear - 4.10, 4.56 Gear Ratio
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
CSF — 3730SKF — BR37301112024