Page 1793 of 2643
AISIN AUTOMATIC TRANSAXLE 5A2 – 203
DAEWOO V–121 BL4
Upper Valve Body Key
MarkRetainerHeight/Width/Thickness mm (in.)
ACheck valve11.5 (0.453) / 5.0 (0.197) / 3.2 (0.126)
BSecondary regulator valve16.0 (0.630) / 5.0 (0.197) / 3.2 (0.126)
CLock up control valve16.0 (0.630) / 5.0 (0.197) / 3.2 (0.126)
DReverse control valve11.5 (0.453) / 5.0 (0.197) / 3.2 (0.126)
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5A2 – 204IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Upper Valve Body Check Ball
Check ball mm(in).5.535 (0.21791)
Page 1795 of 2643
AISIN AUTOMATIC TRANSAXLE 5A2 – 205
DAEWOO V–121 BL4
Lower Valve Body
1. Key
2. Spring
3. 4–3 Shift Timing Valve
4. Key
5. Plug
6. 2–3 Shift Valve
7. Spring
8. Key
9. Plug
10. 1–2 Shift Valve
11. Spring
12. Key
13. Sleeve
14. Plunger15. Spring
16. Primary Regulator Valve
17. Key
18. Sleeve
19. Plunger
20. Spring
21. Lock–up Relay Valve
22. Key
23. Spring
24. Solenoid Modulator Valve
25. Solenoid Oil Strainer
26. Lower Modulator Valve
27. Spring
28. Key
Page 1796 of 2643
5A2 – 206IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
Lower Valve Body Spring
MarkName (Color)Free length/Outer diameter mm
(in.)Total number of
coils
A4–3 shift timing valve No.1 (None)33.95 (1.3366) / 8.2 (0.323)12.5
BLow modulator valve (None)30.43 (1.1980) / 7.75 (0.3051)12.72
C2–3 shift valve (Red)25.50 (1.0039) / 9.73 (8.1694)7.75
D1–2 shift valve (Red)25.50 (1.0039) / 9.73 (8.1694)7.75
EPrimary regulator valve (None)50.53 (1.9894) / 13.6 (0.535)11.07
FLock up relay valve (Red)23.42 (0.9221) / 5.86 (0.2307)12.25
GSolenoid modulator valve (Yellow)32.13 (1.2650) / 8.0 (0.315)15.75
Page 1797 of 2643
AISIN AUTOMATIC TRANSAXLE 5A2 – 207
DAEWOO V–121 BL4
Lower Valve Body Key
MarkRetainerHeight/Width/Thickness mm (in.)
A4–3 shift timing valve No.136.0 (1.417) / 5.0 (0.197) / 3.2 (0.126)
BLow modulator valve24.0 (0.945) / 5.0 (0.197) / 3.2 (0.126)
C2–3 shift valve10.0 (0.394) / 5.0 (0.197) / 3.2 (0.126)
D1–2 shift valve10.0 (0.394) / 5.0 (0.197) / 3.2 (0.126)
EPrimary regulator valve9.8 (0.386) / 5.2 (0.205) / 3.2 (0.126)
FLock up relay valve16.0 (0.630) / 5.0 (0.197) / 3.2 (0.126)
GSolenoid modulator valve24.0 (0.945) / 5.0 (0.197) / 3.2 (0.126)
Page 1798 of 2643
5A2 – 208IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
DIFFERENTIAL CASE
1. Differential Pinion Thrust Washer
2. Differential Pinion Gear
3. Differential Side Gear Thrust Washer
4. Differential Side Gear
5. Pin
6. Differential Pinion Shaft
7. Oil Seal
8. Side Bearing Outer Race9. Tapered Roller Bearing
10. Differential Case
11. Differential Ring Gear
12. Tapered Roller Bearing
13. Side Bearing Outer Race
14. Shim
15. Oil Seal
Page 1799 of 2643
AISIN AUTOMATIC TRANSAXLE 5A2 – 209
DAEWOO V–121 BL4
Tools Required
DW260–031–01 Transaxle Housing Oil Seal Installer
DW260–031–02 Transaxle Case Oil Seal Installer
DW240–150 Transaxle Case Side Bearing Outer Race
Adapter
DW240–140 Transaxle Housing Side Bearing Outer Race
Adapter
DW240–170 Adapter Handle
Disassembly Procedure
1. Place the matchmarks on the ring gear and differ-
ential case.
2. Remove the 8 bolts.
3. Using a plastic hammer, tap on the ring gear to re-
move it from the case.
4. Using a suitable puller, remove the tapered roller
bearing of transaxle housing side.
Page 1800 of 2643
5A2 – 210IAISIN AUTOMATIC TRANSAXLE
DAEWOO V–121 BL4
5. Using a suitable puller, remove the tapered roller
bearing of transaxle case side.
6. Using a pin punch and hammer, drive out the pin
from the ring gear side.
7. Remove the differential pinion shaft from the case.
8. Remove the 2 differential pinion gears, 2 differential
side gears, 2 differential pinion thrust washers and
2 differential side gear thrust washers.