Longfield Chromoly Gun-Drilled Birfield Joint (24-Spline, Individual) – Toyota Land Cruiser 80 Series (303709-1)

Upgrade or replace your front CV joint with a high-strength chromoly solution. The Longfield Gun-Drilled Birfield Joint (24-Spline) is designed for Toyota Land Cruiser 80 Series models equipped with early 24-spline front differentials.

This individual birfield joint is manufactured from 4340 chromoly steel and features a gun-drilled, greaseable design, allowing internal lubrication without disassembly — ideal for off-road vehicles that require regular maintenance and reliability.

Key Features

• Gun-drilled design for internal grease flow
• Integrated M8 grease zerk fitting
• Manufactured from 4340 chromoly steel
• Precision polished to reduce stress risers
• Designed for heavy-duty and off-road use

Construction & Engineering

• Forged chromoly birfield housing
• Dual heat-treated internal components
• Improved strength over OEM CV joints
• Engineered for durability under high load conditions

Technical Specifications

• Differential Compatibility: 24 spline
• Material: 4340 chromoly steel
• Design: Gun-drilled, greaseable
• Configuration: Single birfield joint

Why Choose an Individual Birfield?

• Replace only the failed or worn side
• Cost-effective upgrade over a full kit
• Ideal spare for long-distance travel
• Suitable for staged drivetrain upgrades

Vehicle Compatibility

• Toyota Land Cruiser 80 Series
• Early models with a 24-spline front differential
• Suitable for petrol and diesel variants

What’s Included

• 1 × Gun-Drilled Chromoly Birfield Joint
• Grease fitting (installed)

Installation Notes

• Professional installation recommended
• Verify spline count before ordering
• Minor clearance of the knuckle may be required
• Recommended to service and grease before installation

FAQs

1) Is this sold as a pair?
No. This listing is for a single birfield joint.

2) Is this compatible with all LC80 models?
No. It is specifically for 24-spline differential models.

3) What is the benefit of gun-drilled design?
It allows grease to flow internally, reducing maintenance time and improving longevity.

4) Is it stronger than OEM?
Yes. Chromoly construction and heat treatment significantly increase strength.

5) Can I use this with aftermarket axle shafts?
Yes. It is compatible with both OEM and upgraded axle shafts.

6) Do I need to replace both sides?
Not necessarily, but replacing both is recommended for balanced performance.

Need the inner axle?
Check the 30 Spline Short Side Axle or 30 Spline Long Side Axle version to complete your axle setup.

Looking for the complete kit?
Check the 24 Spline Axle Kit or 30 Spline Axle Kit.