This is one of the best air locker system for the Lada Niva.
22 teeth that can be used on the rear axle all Lada Niva and front Axle Lada Niva up to 2003 Year.
You will need a 2 new bearings to install this air locker Product Code: 21072 - this is requred, because air locker made for these new type of bearing.
Without these bearings you will not be able to install it.
To insall this Air locker you will need a set with a compressor, like THIS one (Modell: CKSA 12 ARB)
How to install the air locker - https://youtu.be/sOclaTDZ190