Genuine H152 5 Speed Conversion Gearbox suitable for Toyota LandCruiser HZJ79 Upgrade

Genuine H152 5 Speed Conversion Gearbox suitable for Toyota Landcruiser HZJ79 Upgrade

🚗 Suitable for a H-Series Upgrade on:

• Toyota Landcruiser 70 Series factory R151 gearbox upgrade (HZJ79, HZJ78, HZJ76 models)

🛠️ Fitment Details:

• Shifters, bellhousing, transfer case and linkage will need to be sourced separately to complete a conversion on the HZJ70/78/79 Series.

If you would like to check your engine RPM before going ahead, try our simple to use engine RPM calculator by clicking through onto this link here.

BACKGROUND INFORMATION ON THE CONVERSION:

From factory, the HZJ79 is fitted with the R151F gearbox. These gearboxes are the same gearbox that is fitted to a 4 cylinder N70 Toyota Hilux with a 1KD-FTV, even going back as far as 1992 model Toyota Surfs. So – if that doesn’t tell you enough about it’s lack luster strength, I’m not sure what else will.

WHY DID TOYOTA DO THIS?

Well, while they do make utility specified vehicles, they also tried to ‘lighten up’ the driveline whether it to be for the cost factor or some other reason. The R series gearbox in their eyes may have shifted smoother, and operated with less gear noise, or maybe they just didn’t know what a beast of the engine they had made with the 1HZ… Who really knows. Either way – it’s a shit gearbox for the application, and it can’t be upgraded internally enough to support the realistic use of the vehicle as a tow rig, ute, or even when turbocharged.

SO HOW ARE WE GOING TO FIX THIS!?

Here’s the not so fun part. Short answer is, we can’t really help you a whole lot, yet. You need to essentially find yourself a H151 from a HDJ79 (14 spline) or HZJ80 (21 spline – DX Models Only due to the part time transfer case). If you use the HDJ79 gearbox, we will need to supply you with a HDJ79 clutch kit as well (in the drop down menu). If you find an 80 Series gearbox, you can use your existing clutch. This is because of the spline count on the input shaft. It also doesn’t matter which one you pick for strength, whether it be 21 spline or 14 spline, you are not going to break it because of this.

SO WHY DO YOU HAVE THIS LISTING UP IF YOU CAN’T HELP ME!

Well, we kinda have. We just gave you a heap of information. And on the odd chance you find yourself with a BLOWN H151 from a HDJ79 or a HZJ80 and want to drop a brand spanker H152 with upgraded 2nd and 5th gear, you can purchase the box we have listed for sale here. We modify them to suit the 1HZ input shaft, making it a direct bolt in swap over if  you ALREADY HAVE A H SERIES BOX IN YOUR HZJ79 Series.

HERE’S SOME SPIEL CHATGPT WROTE FOR US

Improve your Landcruiser’s driving experience with our genuine H152 HZJ79 Series 5-Speed Gearbox. Converted in our factory and designed for HZJ79 Series Landcruisers, this gearbox promises a perfect fit. This is a common upgrade when replacing the older H150 or H151 transmission that the 79 Series Landcruiser was released with. Most of these vehicles are on the verge of having 500,000 km or more on them; not only do you benefit from a brand new gearbox but this is a NON-EXCHANGE service. We do not need your old transmission. This is because what we are supplying is a BRAND NEW component – not rebuilt or overhauled. This is important to us as it 100% retains the ‘Genuine’ Toyota or Aisan quality in your driveline, giving you the confidence to upgrade.

On 33″ or 35″ tyres and stock gear ratios, this will drop your RPM at 100KM per hour to 1900-2000RPM (approx). Where as previously, it would have sat around 2500-2600RPM.

This not only offers a dramatic increase in the economy but will also offer,

• Reduced in-cabin noise
• Reduced driveline wear
• Reduced driver fatigue

📦 What’s included:

• H152 Gearbox only – with 21 Spline input shaft to match your 1HZ Clutch

📦 Dispatch information:

Please allow 2 weeks for assembly and dispatch.

*IMPORTANT NOTE* if you are wanting to pair your new H box with an NPC 1300nm clutch you will require the HZJ80 clutch kit in the bought together list (the HZJ79 NPC 1300nm Clutch kit is to suit the factory R box)

Whether you’re looking to replace your current gearbox or seeking an upgrade the H152 HZJ79 5-Speed Gearbox is the premium choice.