General Specifications

Type - Drive Gear

Synchronised Mesh Type

Type - Reverse Gear

Sliding Mesh Type

1 Gear Ratio

3.539

2 Gear Ratio - 1.0L DOHC

1.952

2 Gear Ratio - 1.2L DOHC

1.864

2 Gear Ratio - 1.2L or 1.19L DOHC

1.864

3 Gear Ratio

1.242

3 Gear Ratio - 1.0L DOHC

1.323

3 Gear Ratio - 1.2L DOHC

1.242

4 Gear Ratio

0.974

5 Gear Ratio

0.781

Reverse Gear Ratio

3.385

Final Drive Ratio - 1.0L DOHC

4.444

Final Drive Ratio - 1.0L or 1.19L DOHC

4.190

Final Drive Ratio - 1.2L DOHC

3.905

Final Drive Ratio - 1.2L DOHC - High Altitude

4.444

Oil Capacity

2.1 L

2.21 qt

Oil Grade

SAE 75W-85W

GL-4

Manufacturer

GMDAT

Type or Model

Y4M HD

Service Specifications

Distance between the Synchroniser Sleeve and the Selector Fork - Limit

1.0 mm

0.039 in

Distance between the Synchroniser Sleeve and the Selector Fork - Standard

0.2-0.6 mm

0.008-0.024 in

Thickness of the Selector Fork End for the Low-Speed - 1-2 Gear - Selector Fork - Limit

8.56 mm

0.337 in

Thickness of the Selector Fork End for the Low-Speed - 1-2 Gear - Selector Fork - Standard

8.7 mm

0.343 in

Thickness of the Selector Fork End for the High-Speed - 3-4 Gear - Selector Fork - Limit

7.66 mm

0.302 in

Thickness of the Selector Fork End for the High-Speed - 3-4 Gear - Selector Fork - Standard

7.8 mm

0.307 in

Selector Fork End for the 5 Gear Selector Fork - Limit

7.66 mm

0.302 in

Selector Fork End for the 5 Gear Selector Fork - Standard

7.8 mm

0.307 in

Speedometer Gear Ratio - Driven

17/18

0.944

Free Play of the Differential-Side Gear Thrust

0.03-0.4 mm

0.001-0. 016 in

0.33-0.37 mm (0.0130-0.0146 in)

0.55 mm (0.0217 in)

0.38-0.42 mm (0.0147-0.0165 in)

0.60 mm (0.0236 in)

0.43-0.47 mm (0.0169-0.0185 in)

0.65 mm (0.0256 in)

0.48-0.52 mm (0.0189-0.0205 in)

0.70 mm (0.0276 in)

0.53-0.57 mm (0.0209-0.0224 in)

0.75 mm (0.0295 in)

0.58-0.62 mm (0.0228-0.0244 in)

0.80 mm (0.0315 in)

0.63-0.67 mm (0.0248-0.0264 in)

0.85 mm (0.0335 in)

0.68-0.72 mm (0.0268-0.0283 in)

0.90 mm (0.0354 in)

0.73-0.77 mm (0.0287-0.0303 in)

0.95 mm (0.0374 in)

0.78-0.82 mm (0.0307-0.0323 in)

1.00 mm (0.0394 in)

0.83-0.87 mm (0.0327-0.0343 in)

1.05 mm (0.0413 in)

0.88-0.92 mm (0.0346-0.0362 in)

1.10 mm (0.0433 in)

0.93-0.97 mm (0.0366-0.0382 in)

1.15 mm (0.0453 in)

0.98-1.02 mm (0.0386-0.0402 in)

1.20 mm (0.0472 in)

1.03-1.07 mm (0.0406-0.0421 in)

1.25 mm (0.0492 in)

Thrust Adjusting Shim

0.90-0.95 mm

0.0354-0.037 in

1.00-1.05 mm

0.0394-0.0413 in

1.10-1.15 mm

0.0433-0.0453 in

1.20 mm

0.0472 in

Thrust Free Play of Differential Side

0.03-0.4 mm

0.001-0.016 in