EXCEL 12BC373 Ring & Pinion Set fit GM 8.875", 3.73 Ratio – 30 Spline, Standard– Fits GM 8.875" (12-Bolt) Differentials, Requires 3.90+ Carrier, Replaces GM: 742H730C, Richmond, Yukon, Motive Gear
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Product details
| Management number | 215292541 | Release Date | 2026/04/12 | List Price | US$59.50 | Model Number | 215292541 | ||
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EXCEL from Richmond GM 8.875" Car Ring and Pinion Gear Set - 3.73 Ratio – High-performance gear set designed for durability, strength, and efficiency. ⚙ Features & Benefits:Premium 8620 Steel Construction: Provides exceptional strength for demanding applications.Optimized 3.73 Gear Ratio: Ideal balance of torque & efficiency for street & performance driving.Precision Fit for GM 8.875" (12-Bolt) Differentials:30-spline pinion gear11-tooth pinion gear41-tooth ring gear12-bolt ring and pinion1.625-inch pinion shaft diameterStandard rotationThin ring and pinion gear set requires 3.90 & higher carrierIncludes Rear Pinion Seal: Ensures proper sealing and prevents leaks for long-lasting performance.Designed for Smooth, Quiet Operation. 🚗 Applications & Compatibility: 🔹 Fits GM 8.875" (12-Bolt) Differentials in the following models: 1964-1973 Chevrolet Chevelle1967-1972 Chevrolet Camaro1965-1972 Chevrolet Impala1965-1972 Oldsmobile 981965-1972 Pontiac GTO1965-1972 Buick Electra1970-1972 Pontiac Grand Prix1971-1972 Buick Skylark1971-1972 Oldsmobile Cutlass1965-1972 Pontiac LeMans1971-1972 GMC SprintAnd many more! Verify compatibility before purchase. 🔄 Replaces For:SVL: 2023890USA Standard Gear: 36168, ZG GM12P-373-4Richmond Gear: 49-0096-1Dorman: 697-138Transtar Industries: 742H730CMotive Gear: G888373TYukon Gear and Axle: YG GM12P-373-4 🛡 Warranty & Why Choose EXCEL from Richmond?🛡 Warranty: 1 Year / 50,000 Miles – Guaranteed quality & reliability.⚙ Premium Performance: Ideal ring and pinion kit for restoration & performance upgrades.🚗 Perfect for GM Vehicles: Engineered to match OEM specifications, ensuring compatibility with pinion seal and rack pinion components. Now with rear pinion seal included for complete installation! 🚗⚙ Let me know if you need any further refinements.
- ✅ Heavy-Duty 8620 Steel – Enhances strength & durability under high-load conditions
- ✅ 30-Spline Pinion Shaft – Ensures a precise fit for GM 8.875" (12-Bolt) differentials
- ✅ Standard Rotation & 12-Bolt Design – Maintains factory driveline reliability & smooth performance
- ✅ Direct OEM Replacement – Compatible with classic GM vehicles, requiring a 3.90 & higher carrier
- 1-Year or 50,000 Miles Warranty
| Brand | Excel |
|---|---|
| Model | Ring and Pinion |
| Exterior | Machined |
| Item Weight | 13.86 pounds |
| Manufacturer | EXCel |
| OEM Part Number | 12BC373 |
| Item model number | 12BC373 |
| Product Dimensions | 11 x 15.25 x 5.25 inches |
| Manufacturer Part Number | 12BC373 |
| Is Discontinued By Manufacturer | No |
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Differential Rings & Pinions
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