What oil?

[Bassman/NZ]

I have an f150 transmission, and need to know what oil guys are running in it? I know there's quite a few running behind Model A engines.
Thanks, Marty.

[Kahuna]

I use 75-90 gear oil from NAPA. I use it in the transmission, O/D and Banjo rear axle

[Gavin]

The guy who sold me my F150 gearbox recommended Red Line synthetic SAE70W80. I haven't installed the gearbox yet so cannot make any worthwhile comment.
Cheers,
Gavin

[Mitch//pa]

Factory spec

[john in illinois]

I use Redline MT-90 manual transmission oil. This has a better friction coefficient for synchros than regular 90W gear oil.It shifts great hot or cold.

The only downside is I have to pay shipping to get it since no one local sells it.

If I remember, the F-150 trans. takes exactly one quart on refill.

Happy New Year

John

[Ron W]

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My service info says 4.5 US pints. Any of the above recomended oils will work well. Do NOT use ATF! I have Mobil 1 75W-90 in mine. Ron W

[Paul in Colorado]

Originally Posted by john in illinois

I use Redline MT-90 manual transmission oil. This has a better friction coefficient for synchros than regular 90W gear oil.It shifts great hot or cold.

The only downside is I have to pay shipping to get it since no one local sells it.

If I remember, the F-150 trans. takes exactly one quart on refill.

Happy New Year

John

I use Redline MT-90 in my Borg Warner overdrive. Speed shops sell it in my area. Check Redline on line for local shops.

Paul