K Gearbox

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Can't find a good Datsun gearbox? 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 (don't use with a supercharged A15)

Album 12299

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

3rotor shows how he swapped the K40 into his ute.

See main article: Cut-n-shut

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Release Lever

Album 11881

Release Bearing. Make a sleeve adapter for the Nissan unit

Album 11882

Yoke must be adapted to Datsun driveshaft

Album 11871 

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