Revolution Gear 35-2023B GM 10.5in 14-Bolt Master Install Kit 1998-2004 Timken

Vehicle Fitment

• 1998-2004 GM 10.5" 14-bolt rear axle differential
• Compatible vehicles include: 1998-2004 Chevrolet Silverado 2500/2500HD, 1998-2004 GMC Sierra 2500/2500HD, 1998-2004 Chevrolet Tahoe/Suburban 2500, 1998-2004 GMC Yukon XL 2500, and other GM 3/4-ton and 1-ton trucks and SUVs equipped with the 10.5" 14-bolt corporate rear axle

Fitment Notes

• Sold as a complete master install kit - all components listed below are included; no additional bearings, seals, or hardware are needed for a standard ring and pinion installation
• Axle seals are NOT included - if replacing axle shaft seals during the differential rebuild, these must be sourced separately
• 35-2023B is specific to the 1998-2004 GM 10.5" 14-bolt differential - the earlier versions are 35-2023 (1972-1988) and 35-2023A (1989-1997); verify your axle year before ordering as the bearing specifications differ between generations
• Fits the GM 10.5" corporate 14-bolt rear axle - confirm your axle is the 10.5" ring gear version (the 14-bolt semi-float, as opposed to the full-float 10.5" found in 1-ton applications); verify ring gear diameter and bolt count before ordering
• Bearing type: Timken (USA-made Timken bearings) - part numbers ending in "-K" in Revolution Gear's lineup contain Koyo bearings; the 35-2023B uses Timken

Features

• Complete master install kit with Timken bearings - everything needed to properly re-bearing the GM 10.5" 14-bolt differential and install a new ring and pinion gear set, sourced from trusted name-brand suppliers including Timken for bearings and National for seals
• Timken bearings - Timken is the gold standard for differential bearings, providing precise tolerances, excellent load capacity, and long service life; using quality bearings is critical to achieving proper backlash and preload settings during differential setup
• Comprehensive hardware package - includes ring gear bolts, pinion nut, crush sleeve, and all shim sets so the installer has everything needed without additional sourcing trips
• Gear marking compound and Loctite included - professional setup consumables are included so the installer can verify proper tooth contact pattern and secure ring gear bolts to specification without sourcing these items separately
• RTV sealant and cover gasket included - differential cover sealing materials included for a complete, leak-free installation
• Designed for both daily driver rebuilds and performance/off-road applications - the quality of bearings and components meets the demands of towing, hauling, and off-road use in GM 3/4-ton and 1-ton platforms

Specifications

• Part Number: 35-2023B
• Brand: Revolution Gear & Axle
• Product Type: Ring and Pinion Master Install / Master Overhaul Kit
• Differential: GM 10.5" 14-Bolt Rear Axle
• Fitment: 1998-2004 GM 10.5" 14-bolt rear axle applications
• Bearing Brand: Timken
• Seal Brand: National
• Country of Origin: United States
• Weight: ~9-10 lbs
• UPC: 00810038585130

Included Components

• 1x Inner pinion bearing (Timken HM903249-N)
• 1x Inner pinion bearing race (Timken HM903210-N)
• 1x Outer pinion bearing (Timken M802048)
• 1x Outer pinion bearing race (Timken M802011)
• 1x Pinion pilot bearing
• 2x Carrier bearings (Timken 387AS)
• 2x Carrier bearing races (Timken 382A)
• 1x Pinion depth shim kit
• 1x Pinion seal (National)
• 1x Pinion crush sleeve
• 1x Pinion nut
• 12x Ring gear bolts
• 1x Differential cover gasket
• 1x Gear marking compound with applicator brush
• 1x Tube RTV sealant
• 1x Tube thread locker (Loctite)
• Note: Axle seals are NOT included

Product Description

The Revolution Gear 35-2023B is the master install kit for the 1998-2004 GM 10.5" 14-bolt rear axle - a comprehensive, all-in-one package containing every component needed to properly rebuild the differential and install a new ring and pinion gear set. At the heart of the kit are Timken USA-made bearings, widely regarded as the gold standard for differential rebuilds due to their precise manufacturing tolerances, excellent load capacity, and long service life. The kit also includes National seals, providing a complete, professional-grade bearing and seal package without the need to source individual components.

Beyond bearings and seals, the 35-2023B provides a full hardware package: ring gear bolts, pinion nut, crush sleeve, pinion depth shims, carrier shims, differential cover gasket, RTV sealant, gear marking compound with applicator brush, and Loctite thread locker - everything a professional or advanced DIY installer needs to complete a proper differential rebuild in one box. Note that axle shaft seals are not included and must be sourced separately if needed. The 35-2023B is specific to the third generation of the GM 10.5" 14-bolt (1998-2004) - earlier versions 35-2023 (1972-1988) and 35-2023A (1989-1997) cover earlier model years with different bearing specifications. Verify your axle year before ordering.