Revolution Gear & Axle D44-456TD 4.56 Ratio Thick Dual-Drilled Ring & Pinion

Vehicle Fitment

• Fits vehicles equipped with a Dana 44 standard-rotation differential (verify axle housing code, spline count and bolt pattern before ordering).

Features

• 4.56 :1 gear ratio designed for Dana 44 rear (or front when applicable) differential housings.
• "Thick" ring gear design with dual-drilled bolt pattern (3/8" & 7/16") for broader compatibility across 10-bolt covers.
• Constructed from premium 8620 heat-treated steel for high durability and strength.
• Precision gear cutting and lapping for smooth engagement, reduced noise and improved gear life.
• Improves torque delivery and mechanical advantage when using oversized tyres, heavy loads or off-road conditions.
• Maintains highway drivability when matched properly with tyres and gear ratio.
• 2-year limited manufacturer warranty for defect coverage.
• Requires professional installation - correct preload, backlash and pattern setup are essential for optimal performance.

Specifications

• Gear ratio: 4.56 :1
• Differential type: Dana 44, standard-rotation
• Pinion spline count: 26 splines
• Ring gear diameter: 8.5 inch
• Ring gear bolt thread: dual-drilled 10 x (3/8" & 7/16")
• Material: 8620 steel
• Carrier break compatibility: 3.73/3.92 ratio (when applicable)

Included Components

• 1x ring & pinion gear set (part number D44-456TD)
• Note: Ring gear bolts, bearing kit, seals, gaskets are not included unless specified as part of a full kit - verify before purchase.

Product Description

The Revolution Gear & Axle D44-456TD ring and pinion set provides a heavy-duty gear upgrade for vehicles equipped with a Dana 44 differential. With a 4.56:1 ratio and thick dual-drilled ring gear design, this set is engineered for enhanced torque delivery, increased drivetrain leverage and improved performance when you're running oversized tyres, heavy loads or off-road conditions. Built from high-grade 8620 heat-treated steel and precisely machined and lapped, it's designed for long life and smooth operation.

This product is ideal for trucks, SUVs and 4x4 vehicles where the stock gear ratio no longer matches the demands of heavier loads or larger tyres. Because this is a differential gear set - not vehicle-specific kit - correct fitment verification is critical: confirm your axle housing code, spline count, ring gear bolt pattern (dual-drilled), rotation type, and carrier break before installation. Professional installation of preload, backlash and gear pattern is highly recommended. Ring gear bolts, bearings and seals must be sourced separately unless otherwise specified.