Well I will be changing all the fluids in one of my first gen 7s.

I usally run straight 90 weight in the rear...
Its not a LSD but will a LSD additive be helpfull?

Or what about Amsoil products.. I am very hard on this rear end.. ( )

Anyinfo will help

 

I have always used Heavy Weight Shock Proof from Redline.

 

Whats the weight on it,and where do you get it..



Ok so thats out of the question now.

Its just a welded diff,I just wanted to put something in it to help it out some.Im going to take it on a long trip to Orlando,the longest since I have owned the car..

What about that Lucus stuff from Advance,is it garbage?

 

FWIW 75w-140 with friction modifier in Viper diff.

 

Go RoyalPurple, you cant go wrong with them.
Automotive Engineering on Ulmerton Road sells them, so does Napa on Florida Ave. in Tampa.
http://www.royalpurple.com/prodsa/mgeara.html

 

it's welded lol, you don't even really need gear oil lol.

 

Yeah I know,I was thinking crisco,with a "bunch" of bananas,wow what a lovely scent

 

+1 and if the can says its for limited slip cars, that doesnt mean the additive is in there!