Product Description
Looking for a Toyota LandCruiser HDJ100 turbo diesel or FZJ105 6 cylinder petrol Modified Gearbox & Transfer? Gympie 4WD Spares supplies professionally reconditioned exchange gearboxes featuring our popular 5th Gear Upgrade. Designed for owners who tow caravans, travel long distances and enjoy extended touring, this upgraded gearbox provides improved drivability, approximately 400 RPM lower engine speed during highway cruising and a more relaxed driving experience.
Professionally Reconditioned with 5th Gear Upgrade
Our Toyota LandCruiser HDJ100 / FZJ105 Modified Gearbox & Transfer combines a professionally reconditioned gearbox and transfer assembly with revised factory 2nd and 5th gear ratios. The revised 2nd gear provides smoother spacing between the lower gears, while the upgraded 5th gear delivers approximately 400 RPM lower engine speed during highway cruising. This helps improve fuel economy, reduce engine noise and create a more relaxed driving experience on long-distance trips. Every gearbox and transfer assembly is completely stripped, inspected and rebuilt by experienced technicians using premium quality components and precision assembly procedures.
Why Choose the 5th Gear Upgrade?
- Approximately 400 RPM lower engine speed during highway cruising
- Improved fuel economy on long-distance trips
- Quieter, more relaxed cruising
- Better spacing between 1st, 2nd and 3rd gears
- Ideal for towing caravans and trailers
- Perfect for touring and highway driving
- Professionally reconditioned exchange unit
Gear Ratio Comparison
| Gear | Original | Modified |
|---|---|---|
| 1st | 4.529 | 4.529 |
| 2nd | 2.464 | 2.294 |
| 3rd | 1.490 | 1.490 |
| 4th | 1.000 | 1.000 |
| 5th | 0.881 | 0.750 |
| Reverse | 4.313 | 4.313 |
Product Specifications
- Suits Toyota LandCruiser HDJ100 turbo diesel & FZJ105 6 cylinder petrol models
- Complete modified gearbox and transfer assembly
- Professionally rebuilt exchange unit
- Revised factory 2nd and 5th gear ratios
- Full set of new synchros fitted
- Premium Japanese bearings and seals
- Genuine Toyota and quality aftermarket components
- Built to Toyota specifications
- Daily Australia-wide freight
- 12 month / 20,000 km warranty
Every Gympie 4WD Spares Gearbox is Professionally Rebuilt
Every gearbox and transfer assembly undergoes a complete reconditioning process before leaving our workshop.
- Complete disassembly and inspection
- Full set of brand-new synchros
- Premium Japanese bearings and seals
- Genuine Toyota components where available
- Quality aftermarket replacement parts from trusted suppliers
- Precision assembly to factory specifications
- Thorough quality control inspection before dispatch
Each gearbox is rebuilt to provide smooth gear changes, quiet operation and long-term reliability.
Common Signs Your Gearbox Needs Replacement
If your gearbox is showing any of the following symptoms, it may be time for a replacement:
- Gearbox whine or bearing noise
- Crunching when changing gears
- Difficulty selecting gears
- Jumping out of gear
- Oil leaks from the gearbox or transfer case
- Transfer case noise
- Metal contamination in gearbox oil
Replacing a worn gearbox early can help prevent further damage to other driveline components.
Built for the Toyota LandCruiser 100 & 105 Series
The Toyota LandCruiser HDJ100 and FZJ105 are popular choices for towing, long-distance touring and remote travel. When your LandCruiser is carrying touring gear, towing a caravan or covering long highway distances, gearbox performance and reliability matter. Gympie 4WD Spares modified gearboxes are built to provide dependable performance with improved highway drivability, helping make your LandCruiser more relaxed and enjoyable to drive.
Exchange Unit Information
This modified gearbox and transfer assembly is supplied on an exchange basis. A refundable exchange deposit applies until your original gearbox and transfer assembly is returned and assessed as serviceable. If you do not have an exchange unit available, contact our team to discuss available options.
Daily Australia-Wide Freight
Gympie 4WD Spares dispatches reconditioned gearboxes, modified gearboxes, transfer cases and differential assemblies daily to customers throughout Australia. Whether you are located in Brisbane, Sydney, Melbourne, Adelaide, Perth, Darwin or regional Australia, we can arrange reliable freight directly to your workshop or home.
Professional Installation Recommended
Professional installation by an experienced transmission or four-wheel-drive specialist is strongly recommended to ensure correct fitment, reliable operation and warranty compliance.
Warranty
Every Gympie 4WD Spares modified Toyota HDJ100 / FZJ105 gearbox and transfer assembly is backed by our 12 month / 20,000 km warranty.
Looking for the Standard Gearbox?
If you are looking for a professionally reconditioned gearbox without the revised gear ratios, we also supply a standard Toyota HDJ100 / FZJ105 gearbox and transfer assembly. View our standard gearbox for more information.
Frequently Asked Questions
What are the benefits of the 5th Gear Upgrade?
The 5th Gear Upgrade provides approximately 400 RPM lower engine speed during highway cruising. It also helps improve fuel economy, reduce engine noise and create a quieter, more relaxed driving experience.
What does the revised 2nd gear do?
The revised 2nd gear helps provide smoother spacing between 1st, 2nd and 3rd gears, improving overall drivability.
Does this include the transfer case?
Yes. This product includes the complete professionally reconditioned gearbox and transfer assembly supplied on an exchange basis.
Is this supplied on exchange?
Yes. Your old gearbox and transfer assembly is returned as part of the exchange program.
Do you freight Australia-wide?
Yes. Gympie 4WD Spares dispatches reconditioned and modified gearboxes daily throughout Australia.
How do I know this gearbox suits my LandCruiser?
Simply provide your VIN or vehicle details and our team will confirm the correct gearbox before ordering.









