Product Description

Looking for a Toyota LandCruiser HDJ79 or FZJ79 Modified Gearbox & Transfer? Gympie 4WD Spares supplies professionally reconditioned exchange gearboxes featuring our popular 5th Gear Upgrade. Designed for owners who tow, tour or spend long hours on the highway, this modified gearbox delivers improved drivability, lower engine RPM and a more relaxed driving experience.

Professionally Reconditioned with 5th Gear Upgrade

Our modified gearbox combines a professionally reconditioned gearbox and transfer assembly with revised factory 2nd and 5th gear ratios. The upgraded 5th gear reduces engine RPM by more than 400 RPM during highway cruising while the revised 2nd gear improves spacing between the lower gears.

Why Choose the 5th Gear Upgrade?

Over 400 RPM reduction in 5th gear
Improved fuel economy on highway driving
Quieter, more relaxed cruising
Better spacing between 1st, 2nd and 3rd gears
Ideal for towing caravans and trailers
Perfect for touring and long-distance travel

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 & FZJ79 Part Time 4WD
Complete modified gearbox and transfer assembly
Professionally rebuilt exchange unit
Revised factory 2nd and 5th gear ratios
New synchros fitted
Premium Japanese bearings and seals
Daily Australia-wide freight
12 month / 20,000 km warranty

Every Gympie 4WD Spares Gearbox is Professionally Rebuilt

Each gearbox is completely stripped, inspected, rebuilt using premium components and quality checked before dispatch.

Built for the Toyota LandCruiser 79 Series

Ideal for towing, farm work, mining, remote touring and long-distance highway driving.

Exchange Unit Information

Supplied on an exchange basis. A refundable exchange deposit applies.

Daily Australia-Wide Freight

We dispatch modified gearboxes daily throughout Australia.

Professional Installation Recommended

Professional installation is strongly recommended.

Warranty

12 month / 20,000 km warranty.

Looking for the Standard Gearbox?

We also supply a standard HDJ79 / FZJ79 reconditioned gearbox and transfer assembly.

Frequently Asked Questions

What is the benefit of the 5th Gear Upgrade?

Lower highway RPM, quieter cruising and improved fuel economy.

Does it include the transfer case?

Yes.

Is it supplied on exchange?