Close Ratio for Suzuki Swift MK3 ZC31S 5-speed gearbox

Close Ratio for Suzuki Swift Sport MK3 ZC31S (5-Speed Gearbox).

Applications:

This close ratio gear set is a direct bolt-on application for the 57KA 5-speed manual gearbox found in the Suzuki Swift Sport MK3 ZC31S 1.6L 16v 125hp (M16A engine) from 2005>2010. However, with some modifications, it may also be compatible with other Suzuki vehicles.

Possible compatible models:

1. Suzuki Swift (ZC11S, ZC21S, ZC71S) – Some non-Sport Swift models may accept this gearbox with modifications.
2. Suzuki SX4 (GY, RW, EY series) – Some versions with the M16A engine might be compatible.
3. Suzuki Liana (Aerio) – Some markets – If equipped with an M16A or similar engine, it might be adaptable.

Gear ratios available:

1st 38x12 = 3.167

2nd 37x17 = 2.176

3rd 30x19 = 1.579

4th 30x24 = 1.250

5th 28x27 = 1.037

Material: 

• Billet and Forged Ni CrMo steel.

Hardness:

• HRC 56~60

Main surface treatment processes used: Sandblasting, shot peening and WPC.

Main heat treatments used: Carburizing and Cryogenic. 

Material: Billet and forged Ni CrMo steel.

Hardness: HRC 56~60

Main surface treatment processes used: Sandblasting, shot peening and WPC.

Main heat treatments used: Carburizing and Cryogenic.