We determine the moment of rotation of the drive gear shaft, for which:
...we tightly wind a strong thread around the neck of the flange in several turns and attach a dynamometer to it. The force at which the flange begins to rotate uniformly, multiplied by the radius of the neck, will give the value of the required moment. We write down its value.
Having inserted two bolts into the holes of the flange and holding it with a mounting blade from turning, we unscrew the nut with a 27 key and..
…we remove the flange from the splines of the main gear drive shaft.
The original is available on the online resource VAZbook.ru
Using sliding pliers, remove the cuff.
Using light hammer blows through a section of pipe of a suitable diameter, we press in a new cuff, having first coated its seating surface with Litol-24 grease.
We install a new flange nut and gradually tighten it with a torque wrench to a torque of 12–26 kgf·m, periodically checking the shaft turning force with a dynamometer.
If the initial force was greater than or equal to 2.9 kgf (which corresponds to a moment of 6 kgf cm), then tighten the nut until the flange turning force is 0.5–1.0 kgf (1–2 kgf cm) greater than the initial one.
If the initial force was less than 2.9 kgf (6 kgf cm), then tighten the nut until a turning force of 2.9–4.3 kgf (6–9 kgf cm) is obtained.
If, when tightening the nut, the turning torque exceeds 9 kgf cm, then we disassemble the gearbox and replace the spacer sleeve.