You are going to install a diff block into the front diff of your Niva? Not a good idea!
Why? Because diff block will break weak stock front diff body housing, especially if you install bigger wheels. So to use a limited-slip differential in the front safely you need to buy this all-metal diff body and a rear diff.
-no noise from front axle as it mounts independently from the engine;
-would not burst because of it is all-metal.
Grind the rocks under your Niva!
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