HPI Racing Differential Final Gear Set 38T/13T — Nitro 3, Super Rally, MT, Wheely King

Overview

The HPI Racing Differential Final Gear Set (38T + 13T) is a genuine factory replacement gear pair for the rear/front differential on multiple HPI 1/10 platforms, including the Nitro 3, Super Rally, MT, and Wheely King.

This set includes the 38-tooth ring gear and 13-tooth bevel gear that make up the final-drive ratio inside the differential housing — essential for restoring drivetrain function after wear or damage.

Key Features

• Genuine HPI Racing replacement gears
• 38T ring gear + 13T bevel gear
• Hardened steel construction
• Direct factory fitment
• Multi-platform compatibility

Performance Benefits

• Restores proper final-drive ratio
• Ensures smooth, quiet differential operation
• Long-lasting durability
• Maintains OEM drivetrain feel

Usage Notes

• Inspect bearings and diff seals when servicing
• Use proper diff grease on assembly
• Verify gear mesh after installation

Technical Specs

• Type: Differential Final Gear Set
• Ring Gear: 38 Tooth
• Bevel Gear: 13 Tooth
• Material: Hardened Steel
• Manufacturer: HPI Racing

What's Included

• (1) 38T Ring Gear
• (1) 13T Bevel Gear

Fitment

• HPI Nitro 3 / Nitro RS4 3
• HPI Super Rally
• HPI MT (Maverick Truck) / Nitro MT
• HPI Wheely King

Summary

Restore your differential to factory-fresh operation with this genuine HPI 38T/13T final gear set — the right parts for the job across multiple HPI 1/10 platforms.