[Tdub]

I'm changing the gear oil in my diffs to Amsoil. My truck has an anti spin rear axle. Do I need an additive. Also, do you guys use Red RTV for the Gasket maker?

 

[Mopard]

No additive required or recommended and the gaskets are re-usable

 

[Magic smoke]

I add a little additive to mine. Didn't need RTV on the rear has a re-useable gasket, can't remember on the front but the black RTV is what I prefer.

 

[awenthol]

No additive required or recommended and the gaskets are re-usable

:agree2: :thumbsup

 

[Fiftygrit]

I changed mine to amsoil 75-140 and I also used the addative, with the antislip, seems to work just fine.

 

[DBLR]

Some need an additive and some don't, so try with out any additive but if it makes noise then add some. You don't need to use any RTV as the gaskets are 100% re-usable.