EXCEL 12BT456, Differential Ring & Pinion, For GM 8.875" Truck, Gear Ratio: 4.56, 12-Bolt, 30 Spline, 9 Pinion & 41 Ring Tooth - Fits Chevrolet & GMC Trucks (1964-1982), Replaces: USA Standard 36179
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Product details
| Management number | 212857944 | Release Date | 2026/04/12 | List Price | $49.05 | Model Number | 212857944 | ||
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EXCEL 12BT456 Differential Ring & Pinion Set – Built for GM 8.875" 12-Bolt truck differentials, this high-performance gear set is designed to provide superior durability and power transfer.⚙ Features & Benefits:Premium 8620 Steel Construction: Ensures maximum strength and longevity under heavy loads.Optimized 4.56 Gear Ratio: Features a 9-tooth pinion and 41-tooth ring gear for enhanced torque and acceleration.Compatible with GM 8.875" 12-Bolt Differentials: Works with vehicles requiring a 3.73 and numerically higher ratio carrier.Precision Machined Gears: Minimizes noise and improves drivetrain efficiency.Warranty & Reliability: Backed by EXCEL from Richmond with a 1-year / 50,000-mile warranty.🚗 Applications & Compatibility:Chevrolet Blazer (1969-1974)Chevrolet C10 Pickup (1964-1982)Chevrolet C20 & C20 Suburban (1969-1981)Chevrolet K10 & K10 Suburban (1964-1982)Chevrolet K20 & K20 Suburban (1969-1981)Chevrolet K5 Blazer (1975-1981)Chevrolet G10, G20, & G30 Vans (1964-1981)Chevrolet P10, P20, & P30 Series (1965-1981)GMC C15 & C15 Suburban (1975-1978)GMC C15/C1500 Pickup (1967-1974)🔄 Replaces For:USA Standard Gear 36179Richmond Gear 69-0206-1Motive Gear GM12-456Motive Gear GM12-456AUSA Standard Gear ZG GM12T-456🛡 Warranty & Why Choose EXCEL?🛡 Warranty: 1 Year / 50,000 Miles – Ensuring reliability and long-term performance.⚙ OEM-Quality Manufacturing: Designed for direct fitment with GM 8.875" differentials.🔧 Built for Performance: Ideal for street, off-road, and towing applications.
- Heavy-Duty GM 8.875" 12-Bolt Ring & Pinion Set – Designed for Chevrolet & GMC trucks (1964-1982) with a 3.73 and numerically higher ratio carrier.
- Optimized 4.56 Gear Ratio – Features a 9-tooth pinion and 41-tooth ring gear for enhanced torque and off-road performance.
- Durable 8620 Steel Construction – Provides exceptional wear resistance and long-lasting strength for demanding applications.
- Precision-Cut Reverse Rotation Gears – Reduces drivetrain noise while ensuring smooth and efficient power transfer.
- 1-Year / 50,000-Mile Warranty – Backed by EXCEL from Richmond for reliable performance in daily driving and towing conditions.
| Brand | Excel |
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| Model | Ring and Pinion |
| Exterior | Machined |
| Item Weight | 15.6 pounds |
| Manufacturer | EXCel |
| OEM Part Number | 12BT456 |
| Item model number | 12BT456 |
| Product Dimensions | 11 x 15.25 x 5.5 inches |
| Manufacturer Part Number | 12BT456 |
| Is Discontinued By Manufacturer | No |
Differential Rings & Pinions
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