C6 shifting soft
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Elder User
Joined: Feb 2015
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From: south east kansas
C6 shifting soft
how hard should a C6 shift if its behind a 390fe, using type F fluid, mine is shifts good but it seems soft, the reason I even bring it up is I have been told it should be hard with type F. thanks in advance.
Senior User
Joined: Sep 2013
Posts: 329
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From: Deer park, Wa.
Yes, you should have a very firm shift if the tranny is prior to late 76. In late 76 they went to the anti-clunk design with a wave plate, different clutch material and the use of mercon oil.
You can firm up the shift a little by turning the mod. valve in a few turns. If no change in a few turns turning it further probably won't help.
You can also adjust the band and mikeo0o0o0 outlined a how to in the thread below.
Good luck with it.
https://www.ford-trucks.com/forums/1...djustment.html
You can firm up the shift a little by turning the mod. valve in a few turns. If no change in a few turns turning it further probably won't help.
You can also adjust the band and mikeo0o0o0 outlined a how to in the thread below.
Good luck with it.
https://www.ford-trucks.com/forums/1...djustment.html
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