Toyota R transmission

Toyota Motor Corporation's R family is a family of 5-speed RWD/4WD transmissions built by Aisin. They share much in common (such as the bell housing-to-body bolt patterns) with the General Motors AR-5 (titled MA-5 internally by GM), Jeep AX-15, NV3550, and Isuzu AR5 transmissions.

R150

A 2WD transmission found in many Toyota trucks.

Ratios:
* First Gear: 3.830:1
* Second Gear: 2.062:1
* Third Gear: 1.436:1
* Fourth Gear: 1.00:1
* Fifth Gear: 0.838:1

R150F

A 4WD transmission found in many Toyota trucks.

Ratios:
* First Gear: 3.830:1
* Second Gear: 2.062:1
* Third Gear: 1.436:1
* Fourth Gear: 1.00:1
* Fifth Gear: 0.838:1

R151F

A 4WD transmission found in many Toyota trucks.

Ratios:
* First Gear: 4.313:1
* Second Gear: 2.330:1
* Third Gear: 1.436:1
* Fourth Gear: 1.00:1
* Fifth Gear: 0.838:1

R154

This is a robust 5-speed transmission found in the MKIII Supra Turbo, Toyota Chaser Tourer V, Toyota Mark II Tourer V, Toyota Cresta Tourer V, and Toyota Soarer (turbo) up to 2001. It is also reported to have been used in Isuzu truck applications, as well as the Pontiac Solstice.

Ratios:
* First Gear: 3.250:1
* Second Gear: 1.955:1
* Third Gear: 1.310:1
* Fourth Gear: 1.00:1
* Fifth Gear: 0.753:1

R155

A 2WD transmission found in 2nd Generation (2005+) Toyota Tacomas. [ [http://pressroom.toyota.com/presstxt/2008toyotakit/2008Tacoma_s.pdf "2008 Toyota Tacoma Specifications"] ]

* First Gear: 3.95:1
* Second Gear: 2.06:1
* Third Gear: 1.44:1
* Fourth Gear: 1.00:1
* Fifth Gear: 0.81:1
* Reverse Gear: 4.22:1

R155F

A 4WD transmission found in 2nd Generation (2005+) Toyota Tacomas.

* First Gear: 3.95:1
* Second Gear: 2.06:1
* Third Gear: 1.44:1
* Fourth Gear: 1.00:1
* Fifth Gear: 0.81:1
* Reverse Gear: 4.22:1

ee also

* [http://www.geocities.com/MotorCity/Pit/9975/dataBySubject/Gearboxes.html Toyota Transmissions]

References