05-04-2019, 09:45 PM | #1 |
Senior Member
Join Date: Dec 2016
Location: Fargo North Dakota
Posts: 264
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Overdrive
I have a 49 4door custom all stock. Can I put an overdrive with my existing tranny or will I need a different transmission?
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05-05-2019, 05:59 AM | #2 |
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Join Date: May 2010
Location: Cincinnati, OH
Posts: 1,364
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Re: Overdrive
You can’t simply “add-on” the Borg Warner overdrive unit to an existing Ford straight 3 speed transmission. There are numerous fundamental differences in the gearbox and the transmission main shaft that prevent you from trying this modification.
There are still many 1949-50 Ford overdrive transmissions out there. Buy one as a core and have it rebuilt. Everything still bolts up the same as your regular 3 speed, including the driveshaft. A 1951 Ford OD trans will also work, but will require a modification to the rear support to fit.
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05-05-2019, 08:06 AM | #3 |
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Join Date: May 2010
Posts: 3,019
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Re: Overdrive
OR
Just buy it from Mac, I know for sure he's got some. There are snares in these OD's, that can get overlooked. A worn out planetary is not uncommon & uncomfortably pricey. Solenoid, governor, kick down switch, firewall mounted relay and the cable are all part of the equation. It is worth it for sure ! Charlie ny |
05-05-2019, 08:48 AM | #4 |
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Join Date: Dec 2016
Location: Fargo North Dakota
Posts: 264
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Re: Overdrive
Thanks I didn’t think it was an add on to existing tranny.
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05-05-2019, 12:10 PM | #5 |
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Location: San Antonio, Texas
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Re: Overdrive
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