Marks4WD Barra Patrol 6HP26 ZF6 Transfer Case Adapter & Bolt In Engine Mount Conversion Kit

Marks4WD Barra Patrol 6HP26 ZF6 Transfer Case Adapter & Bolt In Engine Mount Conversion Kit

The Marks4WD Barra Patrol Conversion Kit allows you to install the Ford ZF 6HP26 2WD automatic transmission onto a Nissan GU Patrol transfer case, while importantly keeping your factory ZD30 tail shafts, cross member, and driveline position to the factory geometry.

Designed and manufactured in-house at Marks 4WD in Dingley Village, Victoria, using the same attention to detail and high standards that Marks 4WD customers have come to expect, this kit utilises Bolt-In engine mounts for customers with a ZD30 chassis.

What’s Included

• Transfer Case Adaptor – Ford ZF 6HP26 to Nissan GU Y61
• Transmission Mount – Nissan GQ/GU Patrol to Ford ZF 6HP26
• Barra to Nissan Trans Adaptor – Upper, Lower Mount & Sleeve
• Coupler Shaft – Ford ZF 6HP26 Auto to GQ/GU Patrol
• Seal, O’Ring, Rubber Bush
• Dowels, Bolts, Nuts, SHCS
• Engine Mount Rubbers
• Engine Mount Brackets - Bolt-in
• Engine Mount Clamps
• Detailed Instructions (Downloadable here)
  
  

Transfer Case Adaptor Kit

Designed for a true bolt-in installation, the Marks 4WD conversion kit is engineered around the factory Nissan Patrol GU ZD30 manual crossmember, tailshafts, and low-range lever, allowing it to fit within your existing driveline with minimal modification to factory components.

The engine mounts are designed to retain the OEM Ford Barra power steering pump, alternator, and air conditioning compressor, while supporting naturally aspirated installations as well as compatibility with the factory low-mount turbo or 6Boost top-mount turbo manifolds from Barra the World. (Note: Using alternative crossmembers may alter engine position and component clearances.)

• 101mm from face to face
• Retains the factory ZD30 Manual front and rear tail shafts
• Utilises factory ZD30 Manual Cross Member

Transfer Case Adaptor

Machined from lightweight T5 cast aluminium, the adaptor housing features a precision spigot boss that locks concentrically onto the ZF 6HP26 bore.

For maximum leak protection, we designed the adaptor with oil sealing at two critical points using a rotary seal and O-ring combination, with factory hardware retained on the transfer case side to keep the installation clean and simple.

Coupler Shaft

Machined from heat-treated 8620 high-strength steel, the coupler shaft is precision-made to connect the 2WD transmission output shaft and your factory transfer case input shaft.

Transfer Case Adaptor Mounts 

Getting the driveline centred in the factory position is one of the most important steps in a good Barra conversion, which is exactly why we designed our swivelling mounts to deliver.
This allows you to dial in the factory driveline position, which significantly reduces Noise, Vibration, and Harshness (NVH) for a conversion that drives and feels like an OEM 4WD.

Mounts features:

• High-quality black e-coat finish to ensure corrosion protection
• Rubber bushes to absorb driveline vibrations.
• Simple symmetric design
• Cone locking nuts for vibration resistance

Supporting Hardware 

• High-quality zinc-plated high tensile hardware for corrosion resistance
• OEM grade seals and O-rings

Engine Mount Kit

Our bolt-in engine mount kit is designed to work with your factory ZD30 chassis posts with minimal modification:

• Zinc-plated engine chassis post adaptor plates
• Marks 4WD Heavy Duty engine mount rubbers
• Laser cut, CNC folded, welded and e-coated L/R engine mount brackets

Vehicle Compatibility

Note: Using a GQ transfer case requires a custom low-range lever

Additional Items Required to Complete the Conversion

• Induction system
• Fuel system
• Exhaust system
• Cooling system
• HVAC system (Heating, Ventilation, and Air Conditioning)
• Electrical system
• Steering system
• Ford FG engine sump/pickup/windage tray

Important Notes

• This kit addresses the mechanical adaptation of the transmission to the transfer case.
• Depending on your specific build, the following items will also require solutions:
  - Shifter linkage mechanism
  - Interior shifter interface