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EXCEL 12BT308, Differential Ring & Pinion, For GM 8.875 Truck, Gear Ratio: 3.08, 12-Bolt, 30 Spline, 13 Pinion & 40 Ring Tooth- Fits Chevrolet C10/C20/K10/K20/G10/G20/K5 Blazer/P10/P20-1963-1982

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Product details

Management number 215292732 Release Date 2026/04/12 List Price $74.40 Model Number 215292732
Category

Product OverviewEnhance your GM 8.875" truck differential with the EXCEL 12BT308 Ring & Pinion Set. Engineered for smooth highway performance, improved fuel efficiency, and factory-accurate fitment for classic GM trucks from 1963 to 1982. ๐Ÿ”น Features & Benefits: โœ… 3.08 Gear Ratio for better fuel efficiency and highway driving.โœ… 12-Bolt Cover ensures proper fitment and durability.โœ… 30-Spline Pinion with 13-Pinion Gear Teeth for high-stress applications.โœ… 1.438โ€ Pinion Shaft Diameter for improved power transfer.โœ… 8.875โ€ Ring Gear with 40 Teeth for smooth engagement.โœ… Made from 8620 Steel for superior durability and longevity.โœ… Requires a 2.76 to 3.42 Ratio Carrier for proper installation.โœ… Ideal for daily driving, highway performance, and classic restorations.โœ… Direct OE replacement, ensuring easy installation & factory compatibility. ๐Ÿš— Application & Compatibility: โœ… Chevrolet Models:Chevrolet Blazer (1969-1974)Chevrolet C10 (1975-1982)Chevrolet C10 Panel (1965-1967)Chevrolet C10 Pickup (1963-1974)Chevrolet C10 Suburban (1967-1982)Chevrolet C20 (1975-1981)Chevrolet C20 Pickup (1969-1974)Chevrolet C20 Suburban (1973-1981)Chevrolet G10 (1975-1981)Chevrolet G10 Van (1963-1974)Chevrolet G20 (1975-1981)Chevrolet G20 Van (1967-1974)Chevrolet K10 (1975-1981)Chevrolet K10 Pickup (1963-1974)Chevrolet K10 Suburban (1967-1982)Chevrolet K20 (1975-1981)Chevrolet K20 Pickup (1969-1974)Chevrolet K20 Suburban (1973-1981)Chevrolet K5 Blazer (1975-1981)Chevrolet P10 (1975-1980)Chevrolet P10 Series (1965-1967)Chevrolet P10 Van (1967-1974)Chevrolet P20 (1975-1981)Chevrolet P20 Series (1966-1967) ๐Ÿ”„ Replaces For: โœ… USA Standard Gear: 36173โœ… Richmond Gear: 49-0068-1โœ… Transtar Industries: 742J730โœ… Motive Gear: GM12-308โœ… Richmond Gear: SGM12T01โœ… USA Standard Gear: ZG GM12T-308 ๐Ÿ›ก Warranty & Why Choose EXCEL from Richmond? Backed by a 1-year or 50,000-mile warranty, the EXCEL 12BT308 Ring & Pinion Set ensures durability, performance, and precise fitment. As a trusted name in differential gears, EXCEL delivers OEM-quality components built for long-lasting performance. Upgrade your GM 8.875" truck differential with EXCEL from Richmondโ€™s 3.08 Ring & Pinion Set for maximum efficiency and highway performance! ๐Ÿš—๐Ÿ’จ

  • โœ… Superior Compatibility: Designed for GM 8.875" Truck differentials with a differential carrier break of 2.76 to 3.42 ratios, offering a direct replacement for USA Standard Gear 36173 and ZG GM12T-308.
  • โœ… Precision Engineering: Features a 3.08 gear ratio with a pinion gear tooth count of 13 and a ring gear tooth count of 40, providing smooth and efficient operation for Chevrolet and GMC selected models.
  • โœ… Built to Standard Specifications: Includes 12 cover bolts, 12 ring gear bolts, and a standard ring gear rotation, with a pinion shaft diameter of 1.438 inches and a 30-spline pinion count for exact fitment.
  • โœ… High-Quality Materials: Crafted from durable 8620 steel, the EXCel by Richmond 12BT308 Ring and Pinion Gear Set ensures reliable performance and long-lasting durability for GM 8.875" Truck differentials.
  • โœ… Trusted Performance Guarantee: Backed by a 1-year or 50,000-mile warranty, this ring and pinion gear set delivers dependable performance for light-duty differentials, ensuring peace of mind on every drive.
Brand Excel
Model Ring and Pinion
Exterior Machined
Item Weight 13.53 pounds
Manufacturer EXCel
OEM Part Number 12BT308
Item model number 12BT308
Product Dimensions 11 x 15.25 x 5.5 inches
Manufacturer Part Number 12BT308

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