smalltires

So i went to my local farm store to pick up gear oil to change diff fluid in my new to me xj. I bought full synthetic 75w-90 gear oil from coastal (warren co.). It says its for limited slip which I got as a just in case measure. Got under my jeep and found a limited slip tag on my dana 35. Pulled the cover and it is the lsd carrier. I was wondering if I needed heavier gear oil, or if I had to get the modifier for lsd. The bottle says for full limited slip differential. And the only thing i found was someone posting an msds sheet on bobtheoilguy saying it can be used for compete fill up of lsd. Any help?

kgm

You should be fine. If it chatters, add a bit of LSD additive.

smalltires

I ended up having to go back the parts store anyway, new girl gave me a 8.25 gasket instead if the d35. I just picked up some addative while in there. $8 insurance.

djb383

Do not add the additive if the diff does not "chatter" in a tight turn. The additive allows the clutch packs to slip more.....making the diff perform more like a "open" diff. Keep that traction enhanced diff working like it's supposed to.....don't use gear oil with the additive and if it does chatter in a turn, add only 1/2 tube of additive.....if it still chatters in a turn, add the other 1/2 tube.

Fred/N0AZZ

^What he said^

Firestorm500

Yeah don't double dose it.

smalltires

Well that makes me want to go empty it and refill it again since I got the additive...

djb383

If that's what u decide to do, use a gear oil that has no additive. Do some tight figure 8s and listen for clutch chatter coming from the diff. If there's none (chatter), u r good to go. If there's chatter, then add 1/2 tube of additive and check again doing tight figure 8s.

smalltires

Right now I'm trying to get it all put back together and all the fluids changed. I am looking for a rear extension housing for my transfercase so I can put the drive shaft back in and drive it.