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06-18-2013, 10:16 AM
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#1 |
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Senior Member
Join Date: May 2010
Location: Bennington, Vermont 05201
Posts: 118
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1952 Fordomatic rear-end ratio?
I'm corresponding with a seller about the '52 Ford passenger-car axle he has for sale. He says it's from an original automatic car - what was available with the auto? My books are all packed away, but I seem to recall 3.73 was standard with something higher as an option?
Thanks for any help. |
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06-18-2013, 11:01 AM
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#2 |
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Senior Member
Join Date: May 2010
Location: Winnsboro, Texas
Posts: 463
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Re: 1952 Fordomatic rear-end ratio?
I think 3.73 is correct with automatic. 3.90 with standard and 4.11 with overdrive. Charles
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06-18-2013, 12:35 PM
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#3 |
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Senior Member
Join Date: May 2010
Location: Bennington, Vermont 05201
Posts: 118
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Re: 1952 Fordomatic rear-end ratio?
Thanks!
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06-18-2013, 12:36 PM
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#4 |
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Member
Join Date: May 2010
Posts: 48
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Re: 1952 Fordomatic rear-end ratio?
The correct rear axle ratio for a Fordomatic Drive is 3:31. An optional ratio of 3:54 was available.
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06-18-2013, 12:55 PM
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#5 |
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Senior Member
Join Date: May 2010
Location: Bennington, Vermont 05201
Posts: 118
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Re: 1952 Fordomatic rear-end ratio?
Well, that would be even better.
I wonder where I got 3.73? Was there originally a tag with a code or some other way to tell without counting teeth or turns? |
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06-18-2013, 01:16 PM
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#6 |
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Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,985
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Re: 1952 Fordomatic rear-end ratio?
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06-18-2013, 05:07 PM
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#7 |
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Member
Join Date: May 2010
Posts: 48
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Re: 1952 Fordomatic rear-end ratio?
The 3:73 ratio was used for standard transmission cars.
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06-18-2013, 05:36 PM
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#8 |
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Senior Member
Join Date: Jul 2010
Location: Conifer, Colorado
Posts: 2,518
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Re: 1952 Fordomatic rear-end ratio?
Just FYI: My 53' Merc-O-Matic is a 3:54...but it was the end of the run of flatheads so maybe that is all they had left.
Last edited by Merc Cruzer; 06-18-2013 at 09:20 PM. |
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06-19-2013, 07:25 AM
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#9 |
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Senior Member
Join Date: May 2010
Location: La Luz, NM. 88337
Posts: 1,050
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Re: 1952 Fordomatic rear-end ratio?
My Fordomatic rear is 3:31 ...nice cruiser!
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Support the effort to arm bears! Preparation H will not stop asteroids! |
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06-19-2013, 07:49 AM
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#10 | |
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Senior Member
Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
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Re: 1952 Fordomatic rear-end ratio?
Quote:
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DON'T RECALL DOING SOMETHING FOR MYSELF BASED ON SOMEONE ELSE'S LIKES OR DISLIKES |
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06-19-2013, 12:05 PM
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#11 |
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Senior Member
Join Date: Jul 2010
Location: Conifer, Colorado
Posts: 2,518
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Re: 1952 Fordomatic rear-end ratio?
Good to know
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10-24-2016, 06:16 PM
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#12 |
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Senior Member
Join Date: May 2010
Location: upstate SC
Posts: 3,000
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Re: 1952 Fordomatic rear-end ratio?
just blew our rear axle in 52 with ford o matic. where do you find one to replace and what years fit?
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10-24-2016, 07:47 PM
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#13 |
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Senior Member
Join Date: Jun 2010
Location: Detroit suburb, MI
Posts: 3,794
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Re: 1952 Fordomatic rear-end ratio?
David,
You never said if you're '52 is a V8 or 6 cyl. I think they may have used different ratio's. Sal |
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10-24-2016, 08:10 PM
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#14 | |
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Senior Member
Join Date: May 2010
Location: Midland Park, NJ
Posts: 4,290
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Re: 1952 Fordomatic rear-end ratio?
Any52-56 rear should fit. Always check length and spring pad width.
Quote:
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10-24-2016, 09:10 PM
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#15 |
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Senior Member
Join Date: May 2010
Location: upstate SC
Posts: 3,000
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Re: 1952 Fordomatic rear-end ratio?
found a Glenn Mitchell interchange manual (1961) that says Ford 52 to 54 and Merc 52-54 if you change out backing plates. V8 ratio 3:31
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10-24-2016, 10:01 PM
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#16 |
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Senior Member
Join Date: Oct 2013
Location: Glens Falls NY
Posts: 1,355
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Re: 1952 Fordomatic rear-end ratio?
I believe Richardtx correct. Once researched and read that 3.31 was popular due to better pick-up, and that not many 6 cyl were sold with the matics due to lower power. Yet there's a few 6 owners out-there that love their cars.
There are a few matic owners that have/are converting to standard which is a significant undertaking. Maybe if you patient you'll get lucky and come across one. |
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10-24-2016, 10:06 PM
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#17 |
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Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,985
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Re: 1952 Fordomatic rear-end ratio?
Have a 51 Merc o matic rear for sale, $150, new brakes and drums.
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10-25-2016, 08:11 AM
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#18 |
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Senior Member
Join Date: May 2010
Location: san antonio, texas
Posts: 461
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Re: 1952 Fordomatic rear-end ratio?
i ave a 1953 with fordomatic and the tag on the differential says 3.54
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10-25-2016, 09:39 AM
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#19 |
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Senior Member
Join Date: Sep 2014
Location: Sask. Canada
Posts: 2,550
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Re: 1952 Fordomatic rear-end ratio?
3.31 is what all my books say for the 52 automatic equipped (Mercury). Seems to me mine has the number stamped into the axle housing. Thought I had a picture of it but can't find it now.
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10-25-2016, 08:21 PM
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#20 |
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Senior Member
Join Date: May 2010
Location: Damascus Oregon
Posts: 160
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Re: 1952 Fordomatic rear-end ratio?
My 51 "Mercomatic" had a 3:07. That was in 1960. I can't say if it was factory installed or not. When I put a stick in it, it had to go. I had to downshift for every hill.
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