Motive Gear 12BT456 Ring and Pinion Set GM Ratio - 8.875 4.56

The Motive Gear 12BT456 is a high-quality ring and pinion gear set engineered for GM 8.875" (also known as GM 8.9" or 12-bolt truck) rear differentials. This gear set features a 4.56:1 ratio, providing excellent acceleration and towing performance for trucks and SUVs that require increased low-end torque.

Key Features:

• 4.56:1 gear ratio for improved acceleration and towing capability
• Designed specifically for GM 8.875" 12-bolt truck rear axles
• Precision-machined from high-strength steel for durability
• Heat-treated for maximum strength and longevity
• OEM quality construction meets or exceeds original equipment standards
• Ideal for lifted trucks, larger tire applications, and heavy towing

Motive Gear ring and pinion sets are manufactured to strict tolerances to ensure proper gear tooth contact, quiet operation, and long service life. This gear set is compatible with GM trucks and SUVs equipped with the 8.875" rear differential, commonly found in 1970s-1980s GM trucks and Blazers. Professional installation and proper setup with new bearings and seals is recommended for optimal performance.