K Gearbox

(Difference between revisions)

Revision as of 07:28, 17 September 2015

Toyota K gearbox is the K40 4-speed and K50 5-speed light/medium-duty transmissions found in Toyota Corollas and Starlets. It is readily available. It is good for up to 103 ft. lb. torque, so appropriate for a naturally aspirated A engine. Not strong enough for a turbo or supercharged engine.

Source

     Starlet K engine
     Corolla K engine
1986 Corolla 3A-U, 4A-U (up to 101 ft. lb.)
KM20 Liteace with 4K, 5K, 7K engine (up to 103 ft. lb.)

Stripped 3rd on a K40

Ratios

Ratios
      K40    K50
1st: 3.769  3.789
2nd: 2.250  2.220/2.124
3rd: 1.405  1.435/1.323
4th: 1.000  1.000
5th:        0.865
REV: 4.316  4.136

Swap

See main article: Cut-n-shut

Release Lever

Release Bearing. Make a sleeve adapter for the Nissan unit

Yoke must be adapted to Datsun driveshaft