Community Q&A Question: RP gear oil

Asking About: Mustang 8.8" Rear Differential Fluid & Seal Kit (86-04)


RP gear oil

On the RP bottle it says "with friction modifier" in it already. Is the small bottle still needed?
from Cumming |
0 0

Yes, Ford will still require the friction modifier when replacing the fluid.
from waco |
0 0 Staff Member Post!

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