Revolution Gear & Axle GM10.5-538T 5.38 Ratio Thick Ring & Pinion for GM 10.5"

Vehicle Fitment

• Fits vehicles equipped with the GM 10.5" 14-Bolt rear axle housing (verify axle code, spline count and carrier break before installation).

Features

• 5.38 :1 gear ratio engineered for GM 10.5" 14-Bolt applications when high leverage is required.
• "Thick" ring-gear design for increased durability in heavy-duty scenarios.
• Manufactured from premium 8620 heat-treated steel for long service life.
• Precision-machined gear set provides smooth gear engagement and reduced gear noise.
• Restores mechanical advantage when oversized tyres, heavy loads or modified drivetrain have taxed stock gearing.
• Maintains highway drivability when matched properly with tyres, gear ratio and engine output.
• Backed by a 2-year limited manufacturer warranty for defect coverage.
• Installation recommended with professional setup - proper preload, backlash and gear-pattern essential.

Specifications

• Gear ratio: 5.38 :1
• Axle type: GM 10.5" 14-Bolt rear differential
• Material: 8620 heat-treated steel
• Carrier break: for housings originally fitted 4.10 ratio or lower (verify for your housing)

Included Components

• 1x ring & pinion gear set (part number GM10.5-538T)
• Note: Ring-gear bolts, bearing kit, seals and gaskets are not included unless specified as full kit - verify contents before purchase.

Product Description

The Revolution Gear & Axle GM10.5-538T ring & pinion set delivers a heavy-duty 5.38:1 ratio upgrade specifically designed for the GM 10.5" 14-Bolt rear axle housing. Constructed with premium 8620 heat-treated steel and a thick ring-gear design, this gear set is built for demanding use - especially where large tyres, heavy loads or off-road abuse have made the stock gearing inadequate. Precision-machined gears ensure smooth, quiet operation and long lifespan.

Ideal for trucks, SUVs or vans equipped with the GM 10.5" 14-Bolt rear axle where performance or load demands exceed factory outputs, the GM10.5-538T helps realign gear ratio with actual usage. Because this is an axle-specific gear set rather than a vehicle-specific kit, proper fitment verification is critical: confirm your specific axle housing code, pinion spline count, carrier break and rotation type before installation. Professional installation - including correct preload, backlash and gear-pattern setup - is strongly recommended. Additional components like ring-gear bolts, bearings and seals must be procured separately unless included in a complete kit version.