Bevel box gear oil: What do you use?

[ZoneIII]

In that case you definitely don't need it LS a simple bevel gear box.
but I wouldn't think it hurts.

Yep!

 

[ZoneIII]

it allows the clutches to slide smoothly
for example if u r going in a circle and u dont have the ls then your outside wheel will slide grab.
personally i dont think its a prob
but its going to take professional to say which one is better.

I don't think it's a problem either. I'm thinking the friction modifiers didn't do any harm but were simply unnecessary. After all, if it damaged gears, seals, etc., I would think it would damage the same in a limited slip differential but I may be wrong. In any case, my bevel box has never given me a problems except that the drain plug broke and stripped out the female threads. I plugged it as described in another thread and I simply pump out the old gear oil through the fill hole. I find that to actually be easier than draining it through the drain hole.

 

[1K9]

The main issue here is the torque on the drain plug. There are several stories of busted plugs posted here. Ezzy-pezzy. I used to take the whole thing off and drain it through the fill port. While you'r at it, clean and lube the splines.