DIY H152 Gearbox Input Shaft Swap Conversion Kit | Genuine Toyota Components

DIY H152 Conversion Kit – Ultimate Gearbox Upgrade

The DIY H152 Conversion Kit is the perfect solution for LandCruiser owners who want to save money on labour costs while achieving workshop-grade results. This kit allows you to convert your H152 gearbox to suit 1FZ, 1HZ, 1HD-T, 1HD-FT, and 1HD-FTE engines, using 100% genuine Toyota components for lasting strength and reliability.

Designed for confident DIY enthusiasts and professional mechanics alike, this kit provides every essential part required to complete the conversion without unnecessary guesswork or additional purchases.

Save on Labour — Build It Yourself

The DIY H152 kit gives you the flexibility to perform the conversion in your own workshop, on your schedule, and within your budget. With all key components supplied in one bundle, you can rebuild or convert your gearbox confidently while maintaining the same factory-quality finish trusted by Toyota mechanics.

Each component in this kit is sourced directly from Toyota and pre-checked for precision fitment and reliability. The package includes:

• Input Shaft – 14 tooth (coarse spline) – Please contact us if you require a conversion clutch kit to suit factory flywheel sizes

• Input Shaft Bearing

• Input Shaft Bearing Retainer / Snout

• Input Shaft Seal

• 1 x Tube of 3Bond Red Gasket Sealant

Everything you need to complete your H152 gearbox conversion — without cutting corners.

Engine Compatibility

The DIY H152 Conversion Kit is designed for H-series engine platforms, including:

• 1FZ

• 1HZ

• 1HD-T

• 1HD-FT

• 1HD-FTE

It’s the same configuration used in our in-house conversions at Hassard Industries, offering a proven setup that’s compatible with a wide range of LandCruiser models.

Why Choose Hassard Industries

At Hassard Industries, we specialise in Toyota LandCruiser and Hilux performance, rebuilds, and driveline conversions. Our workshop in Bundamba, QLD, assembles and tests every conversion component we sell, ensuring real-world reliability.

You can trust our experience — from gearbox rebuilds to complete engine conversions, we’ve built our reputation on precision, quality, and service.

We also stock brand-new H152 gearboxes for those who’d rather fit a complete unit instead of converting an existing one. Check out our other listings for more information.

Installation & Recommendations

If you’re converting from fine to coarse spline, we recommend upgrading to a coarse spline input shaft, which allows access to a broader range of off-the-shelf clutch kits and components.
All parts should be installed using correct torque specs and workshop procedures.

For additional guidance, we recommend reviewing Toyota’s drivetrain assembly documentation or consulting a qualified technician before installation.

For relating parts not listed on the website, fill out our Unlisted New Parts quoting form .

To contact us please see our Online Business card.