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12-02-2011, 03:34 PM | #1 |
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Ruckstell model a ford transmission overdrive 3 speed
Just saw this on EBay. Item # 330650403152
RUCKSTELL MODEL A FORD TRANSMISSION OVERDRIVE 3 SPEED I must admit that I haven't seen one of these before. They have also started to discuss it on the T Forum.. |
12-02-2011, 05:39 PM | #2 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
The tag on it says it's a "Dual High" which does not match the seller's description.
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12-02-2011, 06:03 PM | #3 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
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12-02-2011, 07:57 PM | #4 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
We installed one of those Ruxtell transmissions in a Model A several years ago. I have to admit, I never checked the 3rd gear ratio. 2nd gear was quite a bit higher ratio then the stock Ford 2nd gear. The one we installed was NOS, and drove nice and quiet. The car we installed it in had a Twin -X two speed rear end, and 3.54 gears, and the car cruised at 75 effortlessly with the Twin X in overdrive. I have been involved with Model A Fords for 30 years, and have seen a handful of these transmissions. My only worry about owning one is a lack of available parts should it break. Just my 2 cents.....
Steve Becker Berts Model A Center Denver,CO www.modelastore.com |
12-02-2011, 08:43 PM | #5 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
A Google search found a couple of 1931 ads on the Ruxstell overdrive transmission from Popular Science magazine.
http://books.google.com/books?id=9Cc...rdrive&f=false http://books.google.com/books?id=n-M...rdrive&f=false |
12-04-2011, 03:17 PM | #6 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
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12-05-2011, 07:28 PM | #7 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
So in modern terminology, it could be termed close-ratio rather than OD.
I have a little manual for this but no trans... |
12-05-2011, 08:45 PM | #8 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
It is still overdrive,top gear is 25% higher than stock.I think it is termed dual high because second is higher also.I know of two,one is in a car that is stored away,and the other is in a garage that the owner planned to use at some point.I have never been able to get near either one of them.
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12-06-2011, 12:12 AM | #9 | |
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Re: Ruckstell model a ford transmission overdrive 3 speed
Quote:
"Close ratio" is simply two gears that are closely spaced together regardless of them being an overdrive or under drive ratio. 1:1 for 3rd gear and 1:.89 for 4th gear are considered a close ratio gearing. 1:3.45 for 3rd and 1:2.90 for 4th are also close ratio. Close ratio trans are more common in 4, 5, and 6 speeds where you have enough gears to keep the engine in it's performance range while still achieving a decent high end speed. |
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12-06-2011, 11:19 AM | #10 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
I have made an Excel spreadsheet to use as a comparison. Click HERE to open this in a spreadsheet file and you can use this to compare a stock gear ratio transmission to this transmission. You can also use this to substitute a 3.25 or 3.54 ratio instead of a stock 3.78 ratio to see the speed and RPM differences.
The problem is I cannot upload this as an attachmenthere. Therefore here is a direct link if the other one gives you problems: www.model-a-ford.com/Ruckstell_3_Speed_Comparison.xlsx . Last edited by BRENT in 10-uh-C; 12-06-2011 at 02:17 PM. Reason: To add URL link for spreadsheet |
12-06-2011, 11:26 AM | #11 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
Brent,
Link comes up "Page Not Found" |
12-06-2011, 12:23 PM | #12 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
Mine opened up in Excel with some fiddling around on my part.
Dick |
12-06-2011, 05:06 PM | #13 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
I don't have the latest version of excell so I can't see it.
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12-06-2011, 05:36 PM | #14 | |
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Re: Ruckstell model a ford transmission overdrive 3 speed
Quote:
Last edited by Kirby1374; 12-06-2011 at 05:42 PM. |
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12-06-2011, 05:44 PM | #15 | |
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Re: Ruckstell model a ford transmission overdrive 3 speed
Quote:
Mike, I made 3 PDF versions (3.78, 3.54, & 3.27 ratios) and attached it for comparison. You can't play with ratios numbers, or RPMs with this PDF copy but at least you can see it. . |
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12-06-2011, 05:53 PM | #16 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
Thank you
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What's right about America is that although we have a mess of problems, we have great capacity - intellect and resources - to do some thing about them. - Henry Ford II |
12-06-2011, 07:42 PM | #17 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
Brent:
What are the first and second gear ratios coming out of the transmission, nevermind what the rear end is? |
12-10-2011, 07:59 AM | #18 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
Sold for
$5,232.99 . |
12-10-2011, 10:43 AM | #19 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
WOW, I have to wonder how many of these were made and if there is any more around!! Worth keeping an eye open for them......
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12-10-2011, 10:58 AM | #20 |
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Re: Ruckstell model a ford transmission overdrive 3 speed
Thanks Brent . Great info once again...Dave
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