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11-25-2023, 06:01 PM | #1 |
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Location: Olathe Kansas
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Overdrive trans.
I found an R11 overdrive trans, guy thinks it's a 1963. Thinking about putting it in my 1950 Ford Custom. My question is what would be a good price. He wants 400. Seems complete. I would still would need relay, kickdown and wiring.
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11-25-2023, 06:36 PM | #2 |
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Re: Overdrive trans.
That's more than a fair price if it is a working trans.
You can manually shift the levers to test the forward three gears and reverse. To bench test the OD, you would either have to activate the solenoid with a battery, or remove the solenoid and manually activate the OD. If you turn the input shaft with a pliers/vice grip, you can count the revolutions on the output shaft to see the gears working. Is the R11 the same length as your transmission? |
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11-25-2023, 06:49 PM | #3 |
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Re: Overdrive trans.
I'm going to take my trans and bellhousing with me and do some comparing. A direct bolt in place would be a really good thing.
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11-25-2023, 09:04 PM | #4 |
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Re: Overdrive trans.
The 49 up trans pattern was used to about '65. Then Ford double drilled the patterns for a few years. Newc
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11-25-2023, 09:09 PM | #5 |
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Re: Overdrive trans.
Guy said this one is double drilled.
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11-25-2023, 10:17 PM | #6 |
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Re: Overdrive trans.
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This is what I have found from the transmissions I have; yours may be different. I believe the rear mount may also be incompatible. The bolt pattern on the front of the transmission and the input shaft length was the same as the earlier units. These are heavy duty units and strong enough that Ford used them behind the FE engines (including the Hipo 1962 406). Edit : Oh yeah, the spline for the clutch disc is also different (larger), but you should be able to get around that problem with the proper disc.. Last edited by tubman; 11-27-2023 at 11:47 AM. |
11-26-2023, 10:02 AM | #7 |
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Re: Overdrive trans.
I found 2 more OD transmission close by. Ad says they are 50/53 .
That means they would be 6V. Question will 6V solenoid work on a 12V system like a starter. |
11-26-2023, 10:32 AM | #8 |
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Re: Overdrive trans.
I second what Tubman said as far as front bolt pattern and input shaft length and also on bearing retainer OD. If I remember correctly you cant use the early bearing retainer so you have to turn down the od of it to fit the earlier bell housing. I always wondered being Ford drilled the trans case for both patterns if there was another bearing retainer made with the smaller OD that I had never ran into. Steve
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11-26-2023, 01:31 PM | #9 | |
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Re: Overdrive trans.
Quote:
I am installing an OD trans into my '51 tudor while changing to 12v. I was advised by those more wise than I, to get 12v solenoid and relay. That is what I have done.
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11-26-2023, 05:56 PM | #10 |
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Re: Overdrive trans.
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11-27-2023, 11:37 AM | #11 |
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Re: Overdrive trans.
Vanpelt Sales, LLC 513 724 9486
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11-27-2023, 09:32 PM | #12 | |
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Re: Overdrive trans.
The T89 (really a T85) transmission will not bolt into a 49-50 Ford. The rear motor mount and transmission length is wrong. You need the proper 49-50 Ford transmission, or enough parts to assemble one. The tail housing design was changed in 1951 and the rear motor mount is in a different location.
Quote:
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11-29-2023, 07:52 AM | #13 | |
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Re: Overdrive trans.
Quote:
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11-29-2023, 08:18 AM | #14 |
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Re: Overdrive trans.
I thought I heard someplace that you can just turn the trans mount around. Or was that for a '51 Ford-a-matic?
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11-29-2023, 07:16 PM | #15 | |
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Re: Overdrive trans.
Quote:
1949-1950 (notice the extra electrical switch behind the lock out arm) 1951 (I think you can use later, but don't have first hand experience so buyer beware) 1952-1953-1954 (can also use later as bolt in, I have helped install a 1955-1956 unit in a 52 sedan) 1955-1964? (be aware that the units were produced after 1956 have different splines than the earlier units, but you use can use them as long as you match the clutch disk to the input splines and the driveshaft yoke to the output splines) |
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11-29-2023, 07:59 PM | #16 |
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Re: Overdrive trans.
Terry,sent p.m. let me know if [email protected] Cliff.
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11-29-2023, 08:19 PM | #17 |
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Re: Overdrive trans.
Another thing to be aware of is that the "Shoebox" Fords have a clutch arrangement that uses a boss on the side cover to support the clutch linkage. Ford went to "swing pedals" in 1952, so the transmissions lack that boss. I believe that the side covers are a direct swap, so you can just use the earlier piece.
Just one more thing to be aware of. BTW, I am also a big fan of overdrive transmissions in these cars. I had one in my "high school" '51 so I know the advantages. That's why I have one all ready to go into my current car. The extra power provided by the mildly "hopped up" Merc is a real advantage as well. Last edited by tubman; 11-29-2023 at 08:30 PM. |
11-29-2023, 09:57 PM | #18 | |
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Re: Overdrive trans.
Quote:
The splines on the front are correct for the clutch plate. |
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