Product Description
Looking for a Toyota LandCruiser HDJ79 Modified Gearbox with 5th Gear Upgrade? Gympie 4WD Spares supplies professionally reconditioned exchange gearboxes featuring revised 2nd and 5th gear ratios. Designed for HDJ79 owners who tow, tour or spend long hours on the highway, this modified 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 HDJ79 Modified Gearbox combines a professionally reconditioned gearbox with revised factory 2nd and 5th gear ratios. The revised 2nd gear helps improve spacing between the lower gears, while the upgraded 5th gear delivers approximately 400 RPM lower engine speed during highway cruising. This helps create quieter operation, a more relaxed driving experience and improved comfort on long-distance trips.
Why Choose the 5th Gear Upgrade?
- Approximately 400 RPM lower engine speed during highway cruising
- Improved drivability between 1st, 2nd and 3rd gears
- Quieter, more relaxed highway cruising
- Ideal for towing caravans, trailers and work loads
- Suitable for touring and long-distance driving
- Professionally reconditioned exchange gearbox
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 HDJ79 Turbo Diesel
- Complete modified gearbox 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 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
- Gearbox whine or bearing noise
- Crunching when changing gears
- Difficulty selecting gears
- Jumping out of gear
- Oil leaks from the gearbox
- Metal contamination in gearbox oil
Replacing a worn gearbox early can help prevent further damage to other driveline components.
Built for the Toyota LandCruiser HDJ79
The Toyota LandCruiser HDJ79 is a serious work and touring vehicle, often used for towing, farm work, mining and remote travel. This modified gearbox is designed for owners wanting a more relaxed highway drive while maintaining the durability expected from a professionally reconditioned Toyota gearbox. With revised lower gear spacing and a taller 5th gear, it is well suited to HDJ79 owners who spend long hours behind the wheel.
Exchange Unit Information
This gearbox is supplied on an exchange basis. An exchange deposit of $750 applies when purchasing your gearbox and is fully refunded once your exchange unit is returned and assessed as serviceable. If you don’t have an exchange unit available, contact our team to discuss available options.
Daily Australia-Wide Freight
Gympie 4WD Spares dispatches reconditioned and modified gearboxes daily to customers throughout Australia. Whether you’re 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 reconditioned Toyota LandCruiser HDJ79 modified gearbox is backed by our 12-month / 20,000km warranty.
Looking for the Standard Gearbox?
If you’re looking for a professionally reconditioned gearbox without the revised 2nd and 5th gear ratios, we also supply a standard Toyota LandCruiser HDJ79 gearbox for customers wanting an OEM-style replacement.
Frequently Asked Questions
What is the benefit of the 5th Gear Upgrade?
The revised 5th gear provides approximately 400 RPM lower engine speed during highway cruising. This helps create quieter operation, more relaxed driving and improved comfort on long-distance trips.
What does the revised 2nd gear do?
The revised 2nd gear helps improve spacing between 1st, 2nd and 3rd gears, giving the vehicle smoother drivability in normal driving, towing and varied terrain.
Does this gearbox include the transfer case?
No. This is a gearbox-only product.
Is this supplied on exchange?
Yes. This modified gearbox is supplied on an exchange basis with a refundable exchange deposit.
Do you freight Australia-wide?
Yes. Gympie 4WD Spares dispatches reconditioned 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.
Need Help Choosing the Correct Gearbox?
Contact the team at Gympie 4WD Spares with your VIN or vehicle details and we’ll help confirm whether the standard gearbox or modified 5th Gear Upgrade is the right option for your LandCruiser.
