Longfield Chromoly Birfield & Axle Kit – Nissan Patrol Y60 (30-Spline / 31-Spline) (300795-KIT)

Ultimate front axle upgrade for serious off-road use. The Longfield Chromoly Birfield & Axle Kit for the Nissan Patrol Y60 (1987–1997) is engineered to handle extreme torque, large tyres and aggressive driving conditions.

Manufactured from high-grade 4340 chromoly steel and featuring precision machining and dual heat treatment, this kit significantly improves strength and reliability compared to standard factory components.

Why Upgrade to Longfield Birfields?

• Designed for high torque and extreme off-road conditions
• Ideal for vehicles running 35″–37″+ tyres
• Stronger than OEM axle and birfield assemblies
• Reduced risk of common stub shaft and CV failures

Advanced Engineering Features

• Gun-drilled birfield design allows grease to flow directly into internal components
• Integrated M8 grease nipple (zerk fitting) for easy servicing without disassembly
• Precision polished surfaces reduce stress risers and improve durability
• Machined Spline Saver reduces stress concentration at spline area

Material & Construction

• Birfield housing made from forged 4340 chromoly steel
• Internal components dual heat-treated for maximum strength
• Axle shafts manufactured from 4340 chromoly steel
• Designed for heavy-duty off-road and competition use

Technical Specifications

• Birfield Spline: 30 spline
• Diff Side Spline: 31 spline
• Material: 4340 chromoly steel
• Service Feature: Greaseable via zerk fitting

Vehicle Compatibility

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

What’s Included

• 2 × Chromoly Birfield Joints
• 2 × Chromoly Front Axle Shafts
• Pre-installed grease fittings

Installation Notes

• Professional installation recommended
• Some minor clearancing of the knuckle ball may be required
• Regular greasing via zerk fitting is advised for maximum lifespan

Warranty

• 12-month limited warranty
• Covers manufacturing defects under normal use
• Does not include labour or installation costs

FAQs

1) Are these stronger than OEM birfields?
Yes. The 4340 chromoly construction and heat treatment provide significantly increased strength.

2) What tyre size are these suitable for?
They are ideal for vehicles running 35″–37″+ tyres.

3) Do I need to remove them for maintenance?
No. The built-in grease fitting allows servicing without disassembly.

4) Will they fit all Y60 models?
Yes. They are compatible with all Nissan Patrol Y60 variants.

5) Is modification required?
Some minor knuckle clearancing may be required, depending on the setup.

6) Are they suitable for competition use?
Yes. They are designed for heavy-duty and extreme off-road applications.

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

Looking for the Birdfield Joint kit?
Check the Birdfield Joint kit.