8 3/4 questions

[comet_666]

Are you guys just using silicone or carrier gasket and silicone?
Also what limited slip additive do you use if any?
I found this.
http://www.amazon.com/Genuine-Mopar-4318060AB-Limited-Additive/dp/B000TTEX8W

[Dmichels]

I have always used silicone never leaks I use the MOPAR brand limited slip additive

[Lorence]

I've recently had mine out multiple times due to different issues and a gasket will work fine or just permatex will work fine as well.  As far as an additive I've heard many say use one but I never have just gear oil with limited slip added and was talking with a friend who has built many 8 3/4 and he said an extra additive is not needed. 

[Dmichels]

I have also heard that modern gear oil has the limited slip stuff in it already. Probably does not hurt to add some more.
Dave

[John_Kunkel]

Gasket or silicone depends on whether or not you anticipate removal/installation in the future. If it's (you hope) a permanent installation, I'd go with silicone made for use with gear oil.

http://www.permatex.com/products-2/product-categories/gasketing/gasket-makers/permatex-gear-oil-rtv-gasket-maker-detail