Table 11.5. Technical data of manual transmission
| Parameters | Nominal values, mm |
| FRONT-WHEEL DRIVE CARS | |
| Transmission | |
| Primary shaft bearing axial clearance | 0.01-0.12 |
| Axial clearance of the rear bearing of the primary shaft | 0-0.09: F5M21/22 |
| Axial clearance of intermediate shaft bearing | 0.01-0.14: F4M21/22, F5M21/22 |
| Axial clearance of intermediate gear | 0.05-0.17: F4M21, F5M21 |
| Pre-tightening the intermediate gear | 0.05-0.10: F5M22 |
| Secondary shaft axial clearance | 0.05-0.17: F4M21, F5M21 |
| Secondary shaft bearing pre-tightening (from July 1987) | 0.05-0.10: F4M21, F5M21 |
| Pre-tightening the secondary shaft bearing | 0.05-0.10: F5M22 |
| Differential | |
| Axial clearance of the differential box | 0.05-0.17: F4M21, F5M21 |
| Pre-tightening the differential box bearing | 0.05-0.10: F5M22, |
| Profile clearance of the teeth of the differential bevel satellite/ half-shaft bevel gear | 0.025-0.150 |
| ALL-WHEEL DRIVE VEHICLES | |
| Gearshift box | |
| Axial clearance of the front bearing of the primary shaft | 0.01-0.12: W5M31 |
| Axial clearance of the rear bearing of the primary shaft | 0-0.09 |
| Axial clearance of intermediate shaft bearing | 0.01-0.11: W5M31 |
| Pre-tightening of the intermediate shaft | 0.08-0.13 |
| Pre-tightening the front secondary shaft | 0.08-0.13 |
| Center differential | |
| Clutch gear axial clearance | 0.10-0.26 |
| Axial clearance of hydraulic coupling | 0.10-0.26 |
| Pre-tightening the differential box | 0.08-0.13 |
| Axial clearance of differential bevel gear/axle shaft | 0.05-0.25 |
| Front differential | |
| Axial clearance of the differential box | 0.05-0.17 |
| Differential gear tooth profile clearance | 0.025-0.150 |
| Transfer case | |
| Bevel gear tooth clearance | 0.08-0.13 |
| Starting torque of the leading bevel gear shaft | 1.7-2.5 Nm |
| Starting torque of the leading bevel gear | 1.0-1.7 Nm |
Figure 11.12a. F4M21 and F5M21 gearboxes: 1 - Manual transmission switch; 2, 5 - Gaskets; 3 - Back cover; 4 - Reverse light switch; 6 - Spring retainer bolt; 7 - Lock spring; 8 - Locking ball; 9 - Speedometer driven gear; 10 - Ventilation plug; 11 - Pin with spring; 12, 13 - Locknuts; 14 - 5th gear synchronizer; 15 - 5th gear shift fork; 16 - Synchronizer ring; 17 - 5th gear pinion; 18 - Needle bearing; 19 - Bearing insert; 20 - Disc spring; 21 - Snap ring (for F5M21); 22 - Adjusting washer; 23 - Roller bearing; 24 - 5th gear intermediate shaft gear
Figure 11.12b. Gearboxes F4M21 and F5M21: 25, 27, 30, 41 - Bolts; 26, 34 - Gaskets; 28 - Gearbox housing; 29 - Lubrication channel; 31 - Washer with spring; 32 - Limit bracket; 33 - Threaded plug of the limiter ball; 35 - Outer ring; 36 - Shaft seal; 37, 38, 40 - Adjusting washers; 39 - Outer rotating bearing ring; 42 - Reverse gear engagement lever; 43 - Reverse gear engagement shoe; 44 - Reverse gear intermediate gear shaft; 45 - Reverse gear intermediate gear; 46, 47 - Pins with springs; 48,49 - Gear shift forks
Figure 11.12c. Gearboxes F4M21 and F5M21: 50, 51 - Bolts; 52 - Bearing holder; 53 - Intermediate shaft; 54 - Leading (primary) shaft; 55 - Driven (secondary) shaft; 56 - Outer rotating bearing ring; 57 - Differential; 58 - Lubrication channel; 59, 60 - Seals; 61 - Clutch housing; 62 - Magnet; 63 - Magnet bracket
Figure 11.13a. Gearbox F5M22: 1.5, 11 - Bolts; 2 - Back cover; 3 - Reverse gear brake cone; 4 - Washer; 6 - Reverse light switch; 7 - Gasket; 8 - Bolt of the retainer spring; 9 - Lock spring; 10 - Locking ball; 12 - Speedometer driven gear; 13 - Ventilation plug; 14 - Pin with spring; 15, 16 - Locknuts; 17 - 5th gear synchronizer; 18 - 5th gear engagement fork; 19 - Synchronizer ring; 20 - 5th gear pinion; 21 - Needle bearing; 22 - 5th gear intermediate shaft gear
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Figure 11.136. Gearbox F5M22: 23, 25, 28, 40 - Bolts; 24, 32 - Gaskets; 26 - Gearbox housing; 27 - Lubrication channel; 29 - Washer with spring; 30 - Limit bracket; 31 - Threaded plug of the limiter ball; 33 - Seal; 34, 36, 38 - Outer rotating bearing rings; 35, 37, 39 - Adjusting washers; 41 - Reverse gear engagement lever; 42 - Reverse gear engagement shoe; 43 - Reverse gear intermediate gear shaft; 44 - Reverse gear intermediate gear; 45, 46 - Pins with springs; 47, 48 - Gear shift forks
Figure 11.13c. Gearbox F5M22: 49, 50 - Bolts; 51 - Bearing bracket; 52 - Intermediate shaft; 53 - Leading (primary) shaft; 54 - Driven (secondary) shaft; 55 - Differential; 56, 58, 59 - Outer rotating bearing rings; 57 - Lubrication channel; 60, 61 - Seals; 62 - Clutch housing; 63 - Magnet; 64 - Magnet bracket
Figure 11.14a. Gearbox W5M31: 43 - Clutch hydraulic tube bracket; 44 - Gearbox housing; 45 - Lubrication channel; 46 - Lubrication channel; 47 - Outer rotating bearing ring; 48, 49 - Adjusting washers; 50 - Limit bracket; 51 - Seal; 52 - Reverse gear engagement lever; 53 - Reverse gear engagement lever shoe; 54 - Reverse gear intermediate gear shaft; 55 - Reverse gear intermediate gear; 56 - Front wheel driven shaft; 57 - Needle bearing; 58 - Front differential
Figure 11.14b. Gearbox W5M31: 59, 60 - Pins with springs; 61 - Gear shift fork; 62 - Bolt; 63 - Bearing bracket; 64 - Intermediate shaft; 65 - Primary shaft; 66, 68 - Outer rotating rings; 67 - Lubrication channel, 69, 70, 71 - Seals; 72 - Magnet; 73 - Magnet bracket; 74 - Clutch housing