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Andy · 10-10-2021, 01:03 PM

You can by gear oil for Ford transmissions and rear ends at Tractor Supply. It is gr1. It is stated on the bottle. My trans shifted a lot better with it.
It is really cheap. I think $13 for 2 gal.
I am going to put it in the 57 Chevy because it’s trans has brass synchro rings.

10-10-2021, 01:03 PM	#7
Andy Senior Member Join Date: May 2010 Location: Kerrville, Tx Posts: 2,771	Re: 1939 Ford Transmission Gear oil You can by gear oil for Ford transmissions and rear ends at Tractor Supply. It is gr1. It is stated on the bottle. My trans shifted a lot better with it. It is really cheap. I think $13 for 2 gal. I am going to put it in the 57 Chevy because it’s trans has brass synchro rings.