Originally Posted by
Jaz240
Those of you using Naptha make sure your get all the Naptha off your gears and or diff case because it will break down your oils if you don't clean it off. I use it only on metal gears and then I blast off the Naptha with break cleaner and forced air before I RE-assemble. Leaving any trace on parts will quickly turn your 5000 diff oil into 3000.
i use shellite. our version (australian) of naptha. doesn't it (naptha) just evaporate. i leave it sit for 10min before i reassemble.