Longfield Chromoly Birfield Joint Kit – Nissan Patrol Y60 (30-Spline / 31-Spline) (300793-KIT)

Upgrade the weakest point of your front axle. The Longfield Chromoly Birfield Joint Kit for the Nissan Patrol Y60 (1987–1997) is designed to replace factory CV joints with high-strength chromoly components built for demanding off-road use.

This kit includes a heavy-duty birfield joint only, making it an ideal solution for vehicles retaining factory axle shafts but requiring increased durability when running larger tyres or higher torque loads.

Why Upgrade Birfields?

• Eliminates common OEM CV joint failure points
• Designed for larger tyre setups and off-road stress
• Improves reliability under heavy load conditions
• Cost-effective upgrade without replacing full axle shafts

Advanced Engineering Features

• Gun-drilled design allows grease to flow directly into the internal components
• Integrated M8 grease zerk fitting for easy servicing
• Machined Spline Saver reduces stress concentration at the spline transition
• Precision-polished surfaces reduce potential stress risers

Material & Construction

• Birfield housing made from forged 4340 chromoly steel
• Internal components manufactured from 4340 chromoly
• Dual heat-treated internals for increased strength
• Built for extreme off-road and heavy-duty use

Technical Specifications

• Inner Star Spline: 30 spline
• Stub Shaft Spline: 31 spline
• Material: 4340 chromoly steel
• Serviceability: Greaseable via zerk fitting

Vehicle Compatibility

• Nissan Patrol Y60 / GR / GQ / Safari – 1987–1997
• Nissan Safari – 1987–1997
• Ford Maverick – 1988–1994
• All engine variants

What’s Included

• 1 × Chromoly Birfield Joint
• Pre-installed grease fittings

Installation Notes

• Compatible with factory axle shafts
• Professional installation recommended
• Regular greasing is recommended for an extended lifespan

When Should You Choose This Kit?

• Replacing worn or failed OEM birfields
• Upgrading strength while keeping stock axle shafts
• Running larger tyres or an increased drivetrain load

FAQs

1) Does this kit include axle shafts?
No. This is a birfield-only kit.

2) Are these stronger than factory parts?
Yes. Chromoly construction and heat treatment significantly increase strength.

3) Can they be used with OEM axles?
Yes. They are designed to work with factory axle shafts.

4) What tyre sizes are they suitable for?
They are suitable for larger tyre setups, depending on vehicle build.

5) Do they require maintenance?
Yes. Regular greasing via the zerk fitting is recommended.

6) Are they suitable for heavy off-road use?
Yes. They are designed for demanding off-road conditions.

Need just the individual axle?
Check the Short side or Long side version to complete your axle setup.

Looking for the complete axle kit?
Check the Longfield Complete Axle Kit for Nissan Patrol Y60.