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Richmond 12BC410T Ring and Pinion Gear Set

4.9 (1) Write Review

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$185.99

$ 84 .99 $84.99

In Stock

1.Style:Ratio: 3.73 (1965-1972)

2.Qty.:

✅ EXCEL GM 8.875" Ring & Pinion Set – High-performance 4.10 ratio differential gear set designed for GM 8.875" (12 Bolt) rear axles in classic Chevrolet, Pontiac, Buick, and Oldsmobile models from 1964-1973.
✅ Durable 8620 Steel Construction – Built for superior strength, durability, and wear resistance, making it ideal for high-performance applications, muscle cars, and restorations.
✅ Thick Ring Gear for Strength – Designed for GM 8.875" differentials with a 3.07 to 3.73 carrier break, ensuring a secure fit and optimized torque handling.
✅ Precision Fit for OEM Compatibility – Features 41-ring and 10-pinion teeth, a 1.625" pinion shaft diameter, and 30-spline count for smooth power transfer and improved drivetrain efficiency.
✅ 1-Year/50,000-Mile Warranty – Backed by EXCEL from Richmond’s trusted quality assurance, ensuring long-lasting reliability, high performance, and premium quality for your GM 8.875" rear axle system.

EXCEL 12BC410T Differential Ring and Pinion Gear Set – 4.10 Ratio – Fits GM 8.875" (12 Bolt) – Chevrolet Chevelle, Camaro, Impala, El Camino, Pontiac GTO, Firebird, Buick GS, Oldsmobile 442 & More

🔹 Short Description:

The EXCEL 4.10 Ratio Ring & Pinion Set is a premium upgrade for GM 8.875" (12 Bolt) rear axles, delivering superior strength, precise gear engagement, and enhanced power distribution for performance applications.

🔹 Features & Benefits:

Premium 8620 Steel Construction: Ensures durability, wear resistance, and high-load performance for muscle cars and restorations.
Optimized 4.10 Gear Ratio: Improves acceleration, torque delivery, and overall drivetrain efficiency.
Thick Ring Gear for Extra Strength: Requires a 3.07 to 3.73 ratio carrier, ensuring a precise and secure fit.
Precision Fit for OEM Compatibility: 41-ring and 10-pinion teeth, 1.625" pinion shaft diameter, and 30-spline count for smooth operation.
Ideal for Performance & Classic Builds: Designed for high-performance street, drag, and restoration applications.

🔹 Applications & Compatibility:

Compatible with GM 8.875" (12 Bolt) rear differentials in the following vehicles:
- Chevrolet: Chevelle, Camaro, Impala, El Camino, Caprice, Monte Carlo, Nova, Brookwood, Malibu, Bel Air (1964-1973)
- Pontiac: GTO, Firebird, Bonneville, LeMans, Grand Prix, Tempest, Catalina, Parisienne (1965-1972)
- Buick: GS, Gran Sport, Electra, LeSabre, Skylark (1964-1972)
- Oldsmobile: 442, Cutlass, Delta 88, Vista Cruiser, F85 (1965-1972)

🔹 Replaces For:

USA Standard Gear: 36171, ZG GM12P-411T
Richmond Gear: 69-0304-1
Motive Gear: G888411X

🔹 Warranty:

Includes a 1-Year or 50,000-Mile Warranty, ensuring premium quality, long-lasting performance, and peace of mind for your vehicle’s drivetrain.

🔹 Why Choose EXCEL from Richmond?

EXCEL from Richmond is a trusted leader in drivetrain components, offering precision-engineered ring and pinion gear sets that meet or exceed OEM standards, providing durability, reliability, and smooth operation.

kyle pratt

Reviewed in the United States on February 11, 2016

Says it it's made for a gm 12 bolt TRUCK rear end but it doesn't fit my gm 12 bolt TRUCK rear end. This is for a gm 12 CAR rear end. Now I'm without my truck because I have the wrong ring and pinion.

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