4.86 MOD Rear Saturday Night GN Hollow Axles

The 4.86 MOD Rear Saturday Night GN Hollow Axles from Diversified Machine represent a purpose-built rear axle assembly engineered for high-performance off-road and recreational vehicles demanding robust gear reduction and load capacity. This Saturday Night Special configuration delivers the aggressive 4.86:1 gear ratio preferred by enthusiasts seeking maximum torque multiplication for challenging terrain, deep water crossings, and heavy-duty pulling applications. Designed for builders and shops restoring or upgrading vintage and modern 4x4 platforms, this rear axle assembly combines proven engineering with premium component selection to ensure reliability under extreme conditions.

The assembly features a 10-inch ring gear paired with the 4.86 standard ratio, housed in a magnesium center for weight savings without compromising structural integrity—a critical advantage for performance applications where unsprung mass directly impacts handling and suspension performance. The 60-inch width specification accommodates full-size truck platforms, while hollow axles reduce rotational inertia and overall drivetrain mass, improving acceleration response and reducing wear on driveline components. This configuration is purpose-built for vehicles running aggressive tires, winch equipment, or operating in sustained high-torque scenarios where standard gear ratios prove insufficient and aftermarket durability becomes non-negotiable.

Professional builders, off-road enthusiasts, and fleet operators upgrading aging rear axle assemblies benefit most from this configuration, particularly those operating in mud terrain, rocky foothills, or requiring trailer-rated recovery capacity. Installation requires professional setup and gear break-in procedures; consultation with experienced driveline technicians is strongly recommended to ensure proper pinion depth, backlash adjustment, and bearing preload critical to long-term reliability. The 155.53 lb assembly ships complete and ready for installation on compatible full-size truck platforms with appropriate frame width and mounting geometry.