75w90 with the Mopar or equivalent friction modifier. Older trucks used
80w90, but use 75w90 just fine. Ignore the bottle if it says it doesn't
require teh friction modifier, I know the hard way from using Amsoil
that it still needs it. I'd not use Amsoil in your app though if it's
leaking from the seal, it'll probably make it worse.
I hear that seal is a pain in the rear (no pun intended) to change...
good luck!
MattB
Tom Byrne wrote:
>
> Noticed a puddle below the rear end of my Shelby Dak. I see that oil
> is leaking from the seal between the u-joint and the rear end. What
> kind of oil and friction modifier (factory posi) do I need when I refill?
>
>
> Tom Byrne
>
> 1984 Charger 2.2 FSP
> 1989 Shelby Dakota #233
> 1999 Neon DOHC Coupe
> 2007 Dodge Dakota Quad H.O.
>
>
>
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