Yukon Gear YPKC9.25B-S-31B Spider Gear Kit for 2010-2026 Ram 1500 9.25 Axle

Vehicle Fitment

• 2011-2018 Ram 1500 (All Trims, 3.6L V6 / 4.7L V8 / 5.7L V8, RWD/4WD) - Chrysler 9.25 ZF Rear Differential, 31-Spline Axles
• 2019-2024 Ram 1500 Classic (All Trims including Tradesman, Express, SLT, Warlock, 3.6L V6 / 5.7L V8, RWD/4WD) - Chrysler 9.25 ZF Rear Differential, 31-Spline Axles

Fitment Notes

• Designed for Chrysler 9.25-inch ZF rear differentials used in Ram 1500 trucks
• Compatible with open differentials only
• Requires 31-spline axle shafts
• Does NOT fit limited-slip or locker differentials
• Used for repairing worn or damaged spider gears inside the differential carrier

Features

• Complete spider gear replacement kit for Chrysler 9.25 ZF open differentials
• Designed for 31-spline axle shaft applications
• Precision-machined gears for smooth differential operation
• High-strength alloy steel construction for durability and load resistance
• Engineered to restore proper torque distribution between axle shafts
• Direct replacement for worn factory spider gear assemblies
• Designed for truck towing, daily driving, and light off-road applications
• Manufactured to Yukon Gear & Axle performance standards

Specifications

• Differential Model: Chrysler 9.25 ZF
• Differential Type: Open Differential
• Axle Spline Count: 31 spline
• Position: Rear Differential
• Gear Type: Spider / Side Gear Set
• Material: Heat-treated alloy steel

Included Components

• 2x Side Gears
• 2x Spider (Pinion) Gears
• 1x Cross Pin Shaft
• 1x Cross Pin Bolt
• Spider Gear Thrust Washers

Product Description

The Yukon Gear & Axle YPKC9.25B-S-31B spider gear kit is designed for Chrysler 9.25-inch ZF rear differentials equipped with 31-spline axle shafts. This kit provides the internal gears and hardware required to replace worn or damaged spider gears inside the differential carrier, restoring smooth torque distribution between the rear axle shafts during normal driving and cornering.

Manufactured using high-strength alloy steel and precision machining, Yukon spider gears are engineered to exceed typical OEM durability standards. The kit includes the essential components required for a proper differential repair, making it an ideal solution for Ram 1500 trucks equipped with the Chrysler 9.25 ZF open differential used in modern rear-axle configurations.