4.10 Ring and Pinion Set for GM 8.5/8.625

The Richmond Gear GM85410 is a differential ring and pinion set engineered for GM 8.5 and 8.625-inch axle applications. Constructed from robust 8620 steel, this set features a 4.10 gear ratio, providing a balance between acceleration and top-end speed. The set includes a 10-bolt ring gear and a 10-tooth pinion gear with 30 splines, ensuring durability under demanding conditions. Key specifications include a 1.626-inch pinion shaft diameter for enhanced strength and an 8.5-inch ring gear outside diameter. It is backed by a 1-year or 50,000-mile warranty. This ring and pinion set is compatible with a broad array of GM vehicles from various model years, including but not limited to Buick Apollo, Apollo, Century, Electra, LeSabre, Rainier, Regal, Roadmaster, Skylark; Cadillac Brougham, DeVille, Escalade, Fleetwood, Seville; Chevrolet Avalanche, Bel Air, Biscayne, Blazer, Camaro, Caprice, Chevelle, Colorado, Corvette, El Camino, Express, G10, G20, Impala, K10, K10 Suburban, K20, K20 Suburban, Malibu, Monte Carlo, Nova, Silverado 1500, S10, Suburban 1500, Tahoe, Trailblazer, Uplander, Venture; GMC Canyon, Envoy, Jimmy, Safari, Sierra, Sonoma, Yukon, Yukon XL; Oldsmobile 88, 98, Custom Cruiser, Cutlass, Delta 88, Firenza, LSS, Omega, Regency, Silhouette, Toronado; Pontiac Astre, Bonneville, Catalina, Fiero, Firebird, Grand Am, Grand Prix, Grand Ville, GTO, J2000 Sunbird, Laurentian, LeMans, Parisienne, Phoenix, Safari, Sunbird, Tempest, Trans Am, Vibe, and Zephyr. It's crucial to note that this ring and pinion set requires a 2.73 or numerically higher ratio differential carrier for proper installation and function. The manufacturer also provides installation instructions and recommends consulting a factory repair manual for specific torque specifications.