4x4 transfer unit (or transfer box) repairs and reconditioning
The transfer box on a four wheel drive (4×4) vehicle transfers the power to all four driving wheels. Landrover Defender, Discovery, Toyota Land Cruiser and Mitsubishi L200 models are common vehicles requiring transfer unit overhaul in our workshop. These vehicles have the unit at the rear of their inline mounted gearboxes.
Forward mounted transverse gearboxes are found on all-terrain vehicles, SUVs and sportier 4WDs including the Land Rover Freelander, VW Golf, Transporter synchro models. Their transfer units are prone to the same problems and wear.
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The Drivetrain and transfer unit
The transfer unit is essential to synchronise the rotation of the front and rear wheels on SUV cars and other 4×4 vehicles. More serious off-road transfer boxes can also contain low range gears. The transfer system delivers the power from the transmission to the axles using drive shafts and there are many components including bearings, gears, hydraulics or chains that can fail, bind or wear out. Some vehicles can be switched between four and rear-wheel drive or can provide the option to lock the drive shafts for improved traction on extra slippery surfaces.
transfer case repair, replacement and diagnostics
The transfer unit does not usually share the gearbox oil, typically we will first drain it of oil to check for swarf contamination and confirm our initial diagnosis. Transfer units have the same type of bearing set-up as a gearbox therefore you can expect to encounter the same failures.
We can repair transfer units but we hold a good range of replacement units in stock for exchange. This is often the quickest and most cost-effective option. Please contact us for a price and current availability for your vehicle.
Example 4x4, pick-up, van and SUV vehicles
Land rover discovery • Land rover defender • range rover sport • BMW X5 • Jeep Wrangler • Toyota Land cruiser• Fiat Panda 4×4 • Mitsubishi L200 • nissan navarra • Skoda Kodiaq • Volvo XC90 • Dacia Duster • Jaguar F-Pace • Volkswagen T5 Transporter • Fiat Fullback • Toyota Hilux
Free local collection and delivery throughout Worcestershire, Warwickshire, Herefordshire and Gloucestershire – loose gearboxes, differentials or transfer units.
Very professional and quick service. Organised my gearbox to be looked at on Wednesday, by Friday the gearbox was ready to be collected. In that time they had noticeabley gone the extra mile with their service. Couldn’t have asked for more. Thanks Geartech
TROUBLESHOOTING TRANSFER CASE PROBLEMS
FEELING THE TYRES
FROM RUBBER SEALS
DISENGAGING FOUR WHEEL DRIVE
Contact Geartech Midlands today with your enquiry or to arrange local free collection or delivery