9 1/4 and dana 44

Supershafts said
additive helps the clutches slip, removing it would make it more aggressive.

If this is a mud truck only then stick spools in them

its my daily driver/toy

when on a dirt road it leaves two tracks but if you spin in a mud hole one rear tire spins. I am going to put a spool in the front. what will happen if I run no additive in the rear end