Valve Body Upgrade

Your Towing and 4WDing Confidence Booster

The Valve Body Upgrade will give you extra confidence during heavy duty off-roading and TOWING is noticeably improved – firmer shifts combined with a reduction of slipping in your transmission

Enjoy a greater driving experience with this upgrade with reduced operational heat and improved fuel consumption

It’s all in the Valve Body

The valve body is the brain and heart of an automatic transmission. When a manufacturer designs a transmission they go to great lengths to make sure the gear shifts smoothly and comfortably as that is what the general consumer expects. Soft shifts are ok for light duty and normal day to day use in built-up areas.

When you tow a heavy caravan or trailer and go 4WDing then the demands on the transmission change. For increased load, the shift duration ideally needs to be shortened to ensure a firmer shift to reduce the chance of clutch slippage and the resulting heat build-up within the clutch packs.

As an independent transmission and 4WD specialist, we go much further in researching load compensation than car makers as that area holds no interest for the vehicle manufacturer. Our repair records* show that by recalibrating the valve body, transmission clutch life under heavy towing conditions can be improved dramatically while losing very little driver comfort.

The Valve Body Upgrade re-calibrates the hydraulic valve body to provide shorter duration shifts while under load. This is achieved by increased pressure and volume to enable the clutch packs to apply quicker and with greater clamping force. When the transmission changes ratio there is less slippage, ensuring a longer clutch life. This upgrade also increases the transmission’s coolant flow circuits, resulting in better heat dissipation. Greater control on descents is another added bonus.

The Valve Body Upgrade will give you extra confidence for off-roading and towing.

We highly recommend this upgrade be carried out in conjunction with any engine performance improvements. As engine tunes alter the torque curve, they often adversely affect transmission behaviour and shift quality, with our upgrades you can be sure your automatic transmission does not become the weakest link.

*Records from 1975 when our business was established, to this date.

Vehicle Specifics

Landcruiser

200 Series – Turbo Diesel 6 Speed Auto
200 Series – V8 Petrol 6 Speed Auto
200 Series – V8 Petrol 5 Speed Auto

Landcruiser

100 Series – Turbo Diesel 4 Speed Auto
100 Series – Turbo Diesel 5 Speed Auto
100 Series – V8 Petrol 4 Speed Auto
100 Series – V8 Petrol 5 Speed Auto

Landcruiser

105 Series – 1FZ Petrol 4 Speed Auto
105 Series – 1HZ Diesel 4 Speed Auto

Landcruiser

60 Series – Diesel Hyd 4 Speed Auto
60 Series – Petrol Hyd 4 Speed Auto

Landcruiser

80 Series – 3F Petrol 90-92 Hyd 4 Speed Auto
80 Series – Petrol 92> 4 Speed Auto
80 Series – Turbo Diesel 90-92 Hyd 4 Speed Auto
80 Series – Turbo Diesel 92> 4 Speed Auto

Hilux

7th GEN – 3.0L Turbo Diesel 4 Speed Auto
7th GEN – 3.0L Turbo Diesel 5 Speed Auto
7th GEN – 4.0L V6 Petrol 5 Speed Auto
8th GEN – 2.8L Turbo Diesel 6 Speed Auto

Fortuner

2.8L Turbo Diesel 6 Speed Auto

FJ Cruiser

4.0L V6 Petrol 5 Speed Auto

Challenger

PB – Turbo Diesel 5 Speed Auto
PC – Turbo Diesel 5 Speed Auto

BT-50

UP (Series 1) – P5AT 3.2L Turbo Diesel 6 Speed Auto
UR (Series 2) – P5AT 3.2L (DPF) Turbo Diesel 6 Speed Auto
UR (Series 2) – P5AT 3.2L (non DPF) Turbo Diesel 6 Speed Auto

MU-X

4JJ1-TCX – 3.0L Diesel 5 Speed Auto
4JJ1-TCX – 3.0L Diesel 6 Speed Auto

D-Max

GEN1 4JJ1-TC – 3.0L Turbo Diesel 4 Speed Auto
GEN2 4JJ1-TCX – 3.0L Turbo Diesel 5 Speed Auto
GEN3 4JJ1-TCX – 3.0L Turbo Diesel 6 Speed Auto

Everest

UA 3.2L turbo Diesel 6 Speed Auto

Ranger

PX Series 1 / 3.2L Diesel 6 Speed Auto
PX Series 2 / 3.2L Diesel (DPF) 6 Speed Auto
PX Series 2 / 3.2L Diesel (no DPF) 6 Speed Auto
PX Series 3 / 3.2L Diesel 6 Speed Auto

Colorado

RG – 2.8L Turbo Diesel 6 Speed Auto

Ron Hill, the trusted name in Transmission Upgrades!

We know our transmissions, and we know how to make them run smoother, tow stronger, and perform better on or off-road. Book your obligation free consultation today!