Richmond Gear 49-0039-1 Differential Ring & Pinion Set, GM 8.875" (12-Bolt), 3.73 Ratio, Compatible with Chevrolet Camaro, Chevelle, Impala, Pontiac GTO, Firebird, Oldsmobile 442 (1964-1973), Buick

Richmond Gear 49-0039-1 Differential Ring & Pinion Set, GM 8.875" (12-Bolt), 3.73 Ratio, 8620 Steel, Compatible with Chevrolet Camaro, Chevelle, Impala, Pontiac GTO, Firebird, Oldsmobile 442 (1964-1973) – Designed for performance and reliability, this gear set enhances acceleration, power, and overall drivetrain efficiency for classic GM muscle cars and street applications.⚙ Features & Benefits:Performance Gear Upgrade: 3.73 ratio optimizes power and acceleration for GM vehicles (1964-1973).Premium 8620 Steel: Built for durability, strength, and smooth, quiet operation in high-performance applications.OE Fitment & Compatibility: Precision-machined 12-bolt design, requires a 3.07 to 3.73 ratio carrier.Ideal for Street & Muscle Cars: Enhances power delivery, acceleration, and overall drivetrain performance.Reliable Warranty: Backed by a 2-year / 100,000-mile warranty for long-lasting performance.🔄 Applications & Compatibility:🔹 Buick Models:Centurion (1971-1972)Electra (1965-1972)Estate Wagon (1971-1972)Gran Sport (1965-1967)GS / GS 350 / GS 400 / GS 455 (1968-1972)LeSabre (1971-1972)Skylark (1971-1972)Special (1965-1969)Sportwagon (1964-1972)🔹 Chevrolet Models:Bel Air (1965-1970)Camaro (1967-1972)Caprice (1966-1972)Chevelle (1964-1973)Chevy II (1965-1968)El Camino (1965-1972)Impala (1965-1972)Malibu (1965-1967)Monte Carlo (1970-1972)Nova (1969-1972)🔹 Pontiac Models:Acadian (1965-1971)Beaumont (1965-1969)Bonneville (1965-1972)Catalina (1965-1972)Executive (1967-1970)Firebird (1967-1972)Grand Prix (1970-1972)Grand Safari (1971-1972)Grandville (1971-1972)GTO (1965-1972)Laurentian (1965-1972)LeMans (1965-1972)Parisienne (1965-1972)Strato-Chief (1965-1970)Tempest (1970)🔹 Oldsmobile Models:442 (1971)98 (1965-1972)Cutlass / Cutlass Supreme (1971-1972)Delmont 88 (1967-1968)Delta 88 (1965-1972)F85 (1965-1972)Jetstar 88 / Jetstar I (1965-1966)Starfire (1965-1966)Vista Cruiser (1967-1972)🔄 Replaces For:EXCEL from Richmond: 12BC373TRichmond Gear: 80-0424-1Motive Gear: G888373🛡 Warranty & Why Choose Richmond Gear?🛡 Warranty: 2 Years / 100,000 Miles – Industry-leading coverage.⚙ Precision Machined: Ensures quiet operation and smooth gear engagement.🔧 Ideal for Performance & Towing: Designed to handle high-speed and high-performance applications.

• ✅ Performance Gear Upgrade: 3.73 ratio enhances acceleration, power, and drivetrain efficiency for GM 8.875" rear differentials.
• ✅ Premium 8620 Steel: Built for durability, strength, and smooth, quiet operation in high-performance applications.
• ✅ OE Fitment & Compatibility: Precision-machined 12-bolt design, requires a 3.07 to 3.73 ratio carrier for GM vehicles.
• ✅ Ideal for Street & Muscle Cars: Perfect for classic GM cars, improving power delivery, towing, and performance.
• ✅ Reliable Warranty: Backed by a 2-year / 100,000-mile warranty for long-lasting reliability.