Gearbox BE 1
| Primary shaft adjusting shims | 39 x 46.8 mm These pads come in 18 thicknesses, from 0.7mm to 2.4mm, every 0.1mm |
| Differential Bearing Adjusting Shims | 55 x 62 mm These pads come in 12 thicknesses, from 1.1mm to 2.2mm, every 0.1mm |
| Differential seals: | |
| - left | 40 x 58 x 10 mm |
| - right | 29.8 x 47 x 9.9 mm |
Sealing rings with casing
Since May 1988, the drive shaft sealing rings in the drive housing have been protected by a "plug-in cover" that prevents the sealing edge of the rings from being cut during installation of the drive shafts. To replace the sealing rings, suitable mounting studs must be used to preserve the ring mounting lugs (modified).
| Left side | |
| O-ring diameter | 40 mm |
| Performance | 1 mm |
| Shank | 7.0317 T |
| Right side | |
| O-ring diameter | 30 mm |
| Performance | 1.5 mm |
| Shank | 7.0317 U |
Lubrication
| Amount of oil in the gearbox | 2 dm³ |
| Recommended type of oil for gearboxes | SAE 75W/80 API GL 5, Esso Gear Oil or Shell SF 5288 |
| Frequency of checking the oil level in the gearbox | every 60,000 km |
Gearbox type depending on vehicle type
| Vehicle type 15 BB 22 | BE 1/5 BN 63 |
| Vehicle type 15 VD 22 | BE 1/5 BN 62 |
| Vehicle type 15 VD 22 A | BE 1/5 BN 60 |
Gear ratios
| Gear ratios for gearbox BN 63 (BE 1): | |
| - 1st gear | 3,251 |
| - 2nd gear | 1,850 |
| - 3rd gear | 1,280 |
| - 4th gear | 0,969 |
| - 5th gear | 0,757 |
| Reverse gear | 3,333 |
| Final drive ratio | 4,187 (67/ 16) |
| Gear ratios for gearbox BN 60 (BE 1): | |
| - 1st gear | 3,251 |
| - 2nd gear | 1,850 |
| - 3rd gear | 1,148 |
| - 4th gear | 0,829 |
| - 5th gear | 0,658 |
| - reverse gear | 3,333 |
| Final drive ratio | 3,937 (63/ 16) |
| Gear ratios for gearbox BN 62 (BE 1): | |
| - 1st gear | 3,251 |
| - 2nd gear | 1,850 |
| - 3rd gear | 1,280 |
| - 4th gear | 0,969 |
| - 5th gear | 0,757 |
| - reverse gear | 3,333 |
| Final drive ratio | 4,062 (65/ 16) |
Gearbox BE 3
Since July 1989, the BE 1 gearbox has been replaced by the BE 3 gearbox. This gearbox features a new gearshift pattern, with reverse gear opposite fifth gear, a new housing, special gearshift control and a movable reverse gear pinion with a rotated direction of movement. BE 3 gearbox components cannot be replaced by BE 1 gearbox components (and vice versa).
Lubrication
| Amount of oil | 1.8 dm³ |
| Recommended oil | Esso Gear Oil 75W/80 or Shell SF 5288 – 75W/80 |
Transfer case
Lubrication
| Amount of oil | 2.0 dm³ |
| Recommended oil | Esso Gear Oil BT 80W/90 or Shell Gear TT 80W/90 |
| Replacement frequency | after 1500 – 2000 km, and then every 20,000 km |
| Conditions for checking the oil level in the transfer case | the car must be on a flat surface and the engine must be warm |
Checking the oil level and adding oil is done through the oil level indicator hole on the right side, at the rear of the engine compartment.
Tightening moments
| Gearbox rear cover | 12.5 Nm + Loctite Frenetanch |
| Primary and secondary shaft nuts | 55 Nm |
| Bearing housing mounting bolts | 15 Nm |
| Gearbox housing | 12.5 Nm |
| Reverse gear axle mounting bolts | 20 Nm |
| Selector Axle Holder | 15 Nm |
| Reverse gear forks | 20 Nm |
| Deaerator | 15 Nm |
| Reverse light switch | 25 Nm |
| Fastening the driven gear of the main transmission to the differential box | 65 Nm |
| Differential outer housing: | |
| – bolts with a diameter of 10 mm | 40 Nm |
| – bolts with a diameter of 7 mm | 12.5 Nm |
| Release bearing guide sleeve | 12.5 Nm |
| Fastening the gearbox to the engine | 45 Nm |
| Gearbox cover | 10 Nm |
| Differential cover | 30 Nm |