Motive Gear GM12-456, Differential Ring & Pinion, For GM 8.875" Truck Axle, Gear Ratio: 4.56, 12-Bolt, 30 Spline, 9 Pinion & 41 Ring Tooth -Fits Chevy/GMC, Replaces: YG GM12T-456, 12BT456, 69-0206-1.

High-Performance Motive Gear GM12-456 Ring & Pinion Set – 4.56 RatioEngineered for GM 8.875" 12-bolt truck axles, the Motive Gear GM12-456 ring and pinion set delivers unmatched durability, precise fitment, and exceptional performance. Made from 8620 steel, it's designed for strength under high torque loads and rugged use in trucks and 4x4s.Key FeaturesGear Ratio: 4.56Ring Gear Diameter: 8.875"Ring Gear Tooth Count: 41Pinion Gear Tooth Count: 9Pinion Shaft Diameter: 1.438"Pinion Spline Count: 30Ring Gear Material: 8620 SteelBolt Count: 12 Cover BoltsDifferential Carrier Break: 3.73 & HigherVehicle CompatibilityFits GM 8.875" 12-Bolt Truck Axles with 3.73 and Numerically Higher Carrier Configuration.Chevrolet1969–1974 Blazer1975–1982 C101965–1967 C10 Panel1964–1974 C10 Pickup1967–1982 C10 Suburban1975–1981 C201969–1974 C20 Pickup1973–1981 C20 Suburban1975–1981 G101964–1974 G10 Van1975–1981 G201967–1974 G20 Van1975–1981 K101964–1974 K10 Pickup1967–1982 K10 Suburban1975–1981 K201969–1974 K20 Pickup1973–1981 K20 Suburban1975–1981 K5 Blazer1975–1980 P101965–1967 P10 Series1967–1974 P10 Van1975–1981 P201966–1967 P20 Series1968–1974 P20 Van1965–1966 SuburbanGMC1975–1978 C151975–1978 C15 Suburban1967–1974 C15/C1500 Pickup1967–1974 C15/C1500 Suburban1979–1982 C15001979–1981 C1500 Suburban1975–1978 C251975–1978 C25 Suburban1969–1974 C25/C2500 Pickup1969–1974 C25/C2500 Suburban1979–1981 C25001979–1981 C2500 Suburban1965–1966 G1000 Series1975–1978 G151967–1974 G15/G1500 Van1979–1981 G15001975–1978 G251967–1974 G25/G2500 Van1979–1981 G25001970–1981 Jimmy1966–1966 K1000 Pickup1975–1978 K151975–1978 K15 Suburban1966–1974 K15/K1500 Pickup1967–1974 K15/K1500 Suburban1979–1982 K15001979–1982 K1500 Suburban1975–1978 P151967–1974 P15/P1500 Van1979–1980 P15001975–1978 P251967–1974 P25/P2500 Van1979–1981 P25001965–1966 PB1000 Series1966–1966 PB15 Series1965–1965 PB1500 Series1966–1966 PB2500 VanReplaces OEM & Aftermarket Part NumbersEXCEL from Richmond: 12BT456SVL: 2023716Yukon Gear and Axle: 24132, YG GM12T-456Richmond Gear: 69-0206-1, SGM12T08Motive Gear: GM12-456A, GM12-456CANitro Gear & Axle: GM12T-456-NGWarranty & Quality AssuranceBacked by a 1-Year / 50,000-Mile Warranty, Motive Gear ensures industry-leading quality and reliability. Trusted by professionals for strength, quiet operation, and long-term performance in both daily driving and extreme applications.

• Precision-cut gear set with 4.56 ratio, 9-tooth pinion and 41-tooth ring gear. Built for GM 8.875" (12-bolt) truck axles using a 3.73+ carrier. Delivers improved torque for off-road, towing, or performance builds.
• Ring gear is constructed from durable 8620 steel, with a standard rotation design and 8.875" outside diameter. Pinion shaft diameter is 1.438 inches with 30 splines for optimal strength.
• Includes: 1 ring gear, 1 pinion gear. Designed with OE tolerances for a perfect fit in GM 12-bolt truck axles. Gear machining ensures quiet operation and long service life.
• Fits a wide range of classic Chevrolet and GMC trucks and vans (1964–1982), including C/K Series pickups, Blazer, Jimmy, Suburban, G-Series vans, and P-Series step vans.
• Backed by a 1-year / 50,000-mile warranty. Ideal replacement for factory or worn gears. Replaces part numbers: YG GM12T-456, 12BT456, GM12-456A, 69-0206-1, 24132, and more.