How many members with Quaife Diff's are using a Slip Lock additive?

I will be using Amsoil 75-90w gear lube and debating if I should pick up a tube of their Slip Lock?

Is this Diff quiet without the additive?

Thanks

 

Mine is dead quiet without any additive. Can't tell the difference between this and the stock.

 

slip lock additive are typically used in clutch type lsd's, the quaife is a torsen type. no need for friction modifiers

 

Awesome! Thanks.