3.55 8.2in 10 Bolt GM

The 3.55 8.2in 10 Bolt GM by RICHMOND represents a precision-engineered differential component designed for heavy-duty vehicle applications in tactical, military, and industrial settings. This 10-bolt rear axle assembly is engineered to handle the demanding torque and load requirements of reinforced platforms used in law enforcement and military transport operations. Whether you're outfitting a patrol vehicle, command center support truck, or specialized tactical transport, this Richmond differential delivers the strength and reliability field operators depend on when equipment must perform under pressure.

Built with Richmond's proven gear set and housing design, the 3.55 gear ratio provides balanced torque multiplication and highway cruising efficiency—critical for vehicles that must transition between rapid deployment and sustained operations. The 8.2-inch housing accommodates the 10-bolt configuration, a standard in GM platforms, ensuring reliable power delivery to both rear wheels under varied load conditions. Weighing 12.95 lbs with compact overall dimensions (11 x 5.75 x 15.1 inches), this assembly integrates cleanly into existing drivetrain architecture without compromising payload capacity or vehicle dynamics. Richmond's manufacturing standards ensure proper load distribution, reduced bearing wear, and extended service intervals—essential when field repairs aren't an option.

This differential is ideal for operators maintaining GM 10-bolt platforms requiring OEM-specification or upgrade rear-end components. Installation requires proper axle shaft and bearing setup; alignment with existing driveshaft and suspension geometry is critical to performance and safety. Technicians and armorer-level mechanics familiar with differential service will find the 3.55 ratio suitable for vehicles carrying additional tactical payload without excessive driveline stress. For fleet managers prioritizing durability in high-utilization environments, this Richmond assembly offers the proven reliability that keeps mission-critical vehicles operational.