Toyota R154 transmission specifications and details

r154 transmission pictures

R154 was made by Toyota, Japan. This is a speed of 5 (5 speed back and forth). As with most Toyota powertrain components, R154 is a quality design and construction. Unfortunately, as always seems to be the case with modern technology, there is always the Achilles heal.

R154 is a conventional 5-speed gearbox with five forward gears and cut back right away. The reason for the power transmission is clearly seen even with the naked eye. External housing and the gear itself transfixed gearbox credible performance.

Weak point is the first gear thrust washer. Being a construction of print, this part prone to failure if the box is treated. In most known cases, this is the result of one (or a combination!) Three things:

* Abuse or use of gear
* When the gearbox is used with high terminal and / or a link button
* Big-horsepower applications

The easiest solution to this weakness is the light of the gearbox and with respect. For transmission owners with less self control, the best option is to gear down and put back together with new thrust washers are made of chromoly for added strength.

Section itself is quite cheap (about AUD $ 26.50), but can cause damage in the event of failure was very humble. Lower first gear to take the burden of failure because they are in a washing machine.

In a more serious flaw, or if the car continues to be encouraged after the failure, one or more gears to be replaced. The first gear has the price of just AUD $ 550. Certainly not cheap exercise, and better avoided.

In a perfect world the ideal solution for the R154 to replace V16x gearbox from Supra MK4. It is stronger and more extensive proven combination of big horsepower engine 2JZ behind.

Manual Transmission Specifications

Gear Ratio Km Per 1000rpm
First 3.251 9.6
Second 1.955 16.0
Third 1.310 24.0
Fourth 1.000 31.4
Fifth 0.753 41.7
Reverse 3.18

Final Drive 3.727 (Mechanical LSD)

Lubricant Capacity 3 Litres
Oil Specifications 80W-90 GL4 or 5 Gear Oil

Dry Weight 46kg