Motive Gear GM7.5-373A Differential Ring & Pinion Set 3.73 Ratio, 27 Spline, fit GM 7.5" 7.625" 10 Bolt, 8620 Steel, Compatible for Chevrolet, GMC, Buick, Cadillac, Isuzu, Oldsmobile, Hummer
Product details
| Management number | 212857685 | Release Date | 2026/04/12 | List Price | $66.24 | Model Number | 212857685 | ||
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⚙ Upgrade Your GM Differential with Motive Gear! This Motive Gear 3.73 ratio ring & pinion set is designed for GM 7.5"/7.625" (10-bolt) axles. It delivers smooth and efficient performance with precision-machined components made from durable 8620 steel. 🚗 Features & Benefits: ✔ Gear Ratio: 3.73 for improved acceleration & power. ✔ Material: Heat-treated 8620 steel for maximum strength & wear resistance. ✔ Pinion Shaft: 27-spline, 1.438-inch diameter for a secure, OEM-style fit. ✔ Installation: Direct fit for 3.23 & numerically higher ratio carriers. ✔ Ring Gear: 41-tooth, 7.5-inch diameter for OE compatibility. 🔄 Compatible Applications: This ring & pinion set fits a wide range of GM vehicles, including: Buick: Century, Electra, Regal, Riviera, Skylark (1973-1996) Cadillac: Brougham, DeVille, Fleetwood (1982-1990) Chevrolet: Astro, Blazer, Camaro, Caprice, El Camino, Impala, S10, Monte Carlo, Nova (1973-2005) GMC: Canyon, Jimmy, Sonoma, S15, Safari (1982-2012) Hummer: H3, H3T (2006-2010) Isuzu: Rodeo, Pickup, Ascender (1981-2008) Oldsmobile: Bravada, 98, Custom Cruiser (1977-2004) 🛡 Replaces for: • GM: 26036813 • AAM: 40020428 • Richmond Gear: 49-0046-1 • Motive Gear: G875373, GM7.5-373 • Excel from Richmond: GM75373OE 🔧 Why Choose Motive Gear? ✔ Trusted by professionals for precision & durability. ✔ Ideal for performance upgrades & restorations. ✔ Backed by a 1-Year / 50,000-Mile Warranty for peace of mind. 💥 Upgrade Your GM Vehicle’s Differential Today!
- ✅ High-Performance Gear Set – 3.73 ratio ring & pinion set for GM 7.5"/7.625" (10-bolt) axles, crafted from premium 8620 steel for strength & longevity.
- ✅ Precision Engineered – Features a 41-tooth ring gear, 11-tooth pinion gear, 27-spline pinion shaft, ensuring optimal efficiency & durability.
- ✅ Direct OE Replacement – Designed for vehicles with 3.23 & numerically higher ratio carriers; easy installation for a perfect factory fit.
- ✅ Wide Compatibility – Fits Chevrolet, GMC, Buick, Cadillac, Isuzu, Oldsmobile, Hummer models from 1973-2013 (see full list below).
- ✅ 1-Year or 50,000 Mile Warranty – Backed by Motive Gear’s industry-leading warranty for reliable, long-lasting performance.
| Brand | Motive Gear |
|---|---|
| Model | Motive Gear GM7.5-373A Differential Ring and Pinion |
| Exterior | Machined |
| Item Weight | 12.05 pounds |
| Manufacturer | Motive Gear |
| Item model number | GM7.5-373A |
| Product Dimensions | 15.5 x 11 x 5.5 inches |
| Manufacturer Part Number | GM7.5-373A |
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Differential Rings & Pinions
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