LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2020 >> Spark LS, Standard Trans >> Repair and Diagnosis >> Transmission >> Manual Transmission >> Specifications >> Manual Transmission Specifications
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Manual Transmission Specifications

General Specifications

Application Specification
Transmission Type Y4M HD +
Transmission RPO Code MR7
Engine Type and RPO Code 1.0L (L5Q) 1.4L (LV7)
1st Gear Ratio 3.636 3.636 3.636 3.636 3.636
2nd Gear Ratio 1.864 1.864 1.864 1.864 1.864
3rd Gear Ratio 1.189 1.242 1.242 1.189 1.189
4th Gear Ratio 0.946 0.946 0.946 0.946 0.946
5th Gear Ratio 0.756 0.756 0.756 0.756 0.756
Reverse Gear Ratio 3.385 3.385 3.385 3.385 3.385
Final Drive RPO Code FWL F81 F81 FX2 FQ7
Final Drive Ratio 4.444 4.706 4.706 3.905 4.048
Fluid Capacity 1.8 Liters (1.9 quarts)
Transmission Fluid Type XGP SAE 75W85W
Manufacturer GMK
Service Specifications
  • Distance between the Synchronizer Sleeve and the Shift Fork - Limit
 1.0 mm (0.039 in)
  • Distance between the Synchronizer Sleeve and the Shift Fork - Standard
 0.2 - 0.6 mm (0.008 - 0.024 in)
  • Thickness of the Shift Fork End for the Low Speed - 1st-2nd Gear Shift Fork - Limit
 8.56 mm (0.337 in)
  • Thickness of the Shift Fork End for the Low Speed - 1st-2nd Gear Shift Fork - Standard
 8.7 mm (0.343 in)
  • Thickness of the Shift Fork End for the High Speed - 3rd-4th Gear Shift Fork - Limit
 7.66 mm (0.302 in)
  • Thickness of the Shift Fork End for the High Speed - 3rd-4th Gear Shift Fork - Standard
 7.8 mm (0.307 in)
  • Shift Fork End for the 5th Gear Shift Fork - Limit
 7.66 mm (0.302 in)
  • Shift Fork End for the 5th Gear Shift Fork - Standard
 7.8 mm (0.307 in)
Transmission Case Surface and Bearing Cup Clearance Table

Measurement Shim Thickness
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)
Front Differential Bearing Shim Table

Measurement Shim Thickness
0.38 - 0.43 mm (0.0150 - 0.0169 in) 0.60 mm (0.0236 in)
0.43 - 0.48 mm (0.0169 - 0.0189 in) 0.65 mm (0.0256 in)
0.48 - 0.53 mm (0.0189 - 0.0209 in) 0.70 mm (0.0276 in)
0.53 - 0.58 mm (0.0209 - 0.0228 in) 0.75 mm (0.0295 in)
0.58 - 0.63 mm (0.0228 - 0.0248 in) 0.80 mm (0.0315 in)
0.63 - 0.68 mm (0.0248 - 0.0268 in) 0.85 mm (0.0335 in)
0.68 - 0.73 mm (0.0268 - 0.0287 in) 0.90 mm (0.0354 in)
0.73 - 0.78 mm (0.0287 - 0.0307 in) 0.95 mm (0.0374 in)
0.78 - 0.83 mm (0.0307 - 0.0327 in) 1.00 mm (0.0394 in)
0.83 - 0.88 mm (0.0327 - 0.0346 in) 1.05 mm (0.0413 in)
0.88 - 0.93 mm (0.0346 - 0.0366 in) 1.10 mm (0.0433 in)
0.93 - 0.98 mm (0.0366 - 0.0386 in) 1.15 mm (0.0453 in)
0.98 - 1.03 mm (0.0386 - 0.0406 in) 1.20 mm (0.0472 in)
1.03 - 1.08 mm (0.0406 - 0.0425 in) 1.25 mm (0.0492 in)
scientia non olet · About LEMON Manuals