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Old 10-15-2020, 03:47 PM   #5
yblock57
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Join Date: Oct 2020
Location: Round Rock, TX
Posts: 128
Default Re: Fordomatic late shifting ('57 thunderbird)

Quote:
Originally Posted by dmsfrr View Post
for whatever it's worth...
When I asked the shop that rebuilt my Fordomatic what fluid to use they said, "Mercon".
Other folks here have said the fluid used makes a difference in the smoothness of the shifting.
.
I have heard that as well. We went with Type F on the advice from the rebuilder. I'm sure it's contributing to the firm shifts. I'm not sure it would cause it to shift so late though.

Run Type F in 2 other fordomatics and they work just fine. Not sure what to think other than the shop didn't do the job right... ugh.
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