Short Summary: The ring & pinion set Motive Gear BP882411 is engineered for GM 8.2" BOP 10-bolt differentials found in classic Buick, Oldsmobile, and Pontiac vehicles.
With a ratio of 4.11, it's ideal for restoring muscle cars seeking increased performance and acceleration.
Key Features Application: GM 8.2" BOP (Buick-Olds-Pontiac) Gear Ratio: 4.11 Ring Gear Diameter: 8.2" Ring Gear Tooth Count: 37 Pinion Gear Tooth Count: 9 Pinion Shaft Diameter: 1.438" Pinion Spline Count: 27 Material: 8620 Steel Carrier Break: 3.36 & Higher Ring Gear Bolts: 3/8" x 24 RH (required) Warranty: 2 Years or 100,000 Miles Vehicle Compatibility Buick 1964–1972 Electra, Skylark, Sportwagon 1965–1967 Gran Sport 1970–1972 GS, GS 350, GS 400, GS 455 Oldsmobile 1964–1967 442, Cutlass, Cutlass Supreme, F85 1965–1966 Jetstar 88 1965 Jetstar I Pontiac 1964–1972 Bonneville, Catalina, Grand Prix, GTO 1965–1972 LeMans 1967–1972 Firebird 1964–1970 Tempest Replaces OEM & Aftermarket Part Numbers Richmond Gear: 69-0358-1, 82-0562-1, 82-0563-1 Nitro Gear & Axle: GMBOP-411-NG Warranty & Quality Assurance Motive Gear backs the BP882411 with a 2-Year or 100,000-Mile Warranty.
Manufactured from premium-grade 8620 steel and precision machined to deliver consistent performance under vintage street or racing conditions.
Trust Motive Gear for classic GM driveline excellence.
