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#2408072 - 11/23/17 09:03 PM Help me identify this rear end
AZ_A12_BEE Offline
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Registered: 08/19/03
Posts: 18559
Loc: Dreaming of the 808
This rear end is in my newly acquired 37 Plymouth 2 door businessman coupe, it's got modern brakes with a Ford/Mopar 4.5 bolt circle pattern, what is it?


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69.5 A12 Bee, first purchased in 1976, car 169 on registry 69 Coronet R/T 440/4 spd 69 Coronet 500 Conv H code 383 4bbl/auto 37 Plymouth PU Find your spot on earth and ride it.

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#2408073 - 11/23/17 09:04 PM Re: Help me identify this rear end [Re: AZ_A12_BEE]
AZ_A12_BEE Offline
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Registered: 08/19/03
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Loc: Dreaming of the 808
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image.jpeg

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69.5 A12 Bee, first purchased in 1976, car 169 on registry 69 Coronet R/T 440/4 spd 69 Coronet 500 Conv H code 383 4bbl/auto 37 Plymouth PU Find your spot on earth and ride it.

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#2408077 - 11/23/17 09:07 PM Re: Help me identify this rear end [Re: AZ_A12_BEE]
amxautox Offline
Still Retired. Still Posting on Moparts. A Lot.

Registered: 05/13/03
Posts: 96644
Loc: On The Boat, On The Lake, Wa. ...
Ford 8". work
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Tom

"Everyone should believe in something; I believe I'll go fishing."

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Men and fish are alike. They both get into trouble when they open their mouths

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#2408078 - 11/23/17 09:14 PM Re: Help me identify this rear end [Re: amxautox]
Neil Offline
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Registered: 01/19/03
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Loc: Eagle, Idaho
Looky like an early Oldsmobile to me.

Ford 8" are flat on the bottom + the pinion bearings have a cover on the front behind the yoke, which this doesn't have.

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#2408082 - 11/23/17 09:19 PM Re: Help me identify this rear end [Re: Neil]
AZ_A12_BEE Offline
I Live Here

Registered: 08/19/03
Posts: 18559
Loc: Dreaming of the 808
Originally Posted By Neil
Looky like an early Oldsmobile to me.

Ford 8" are flat on the bottom + the pinion bearings have a cover on the front behind the yoke, which this doesn't have.


Olds had a 4.5 inch bolt pattern?
_________________________
69.5 A12 Bee, first purchased in 1976, car 169 on registry 69 Coronet R/T 440/4 spd 69 Coronet 500 Conv H code 383 4bbl/auto 37 Plymouth PU Find your spot on earth and ride it.

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#2408084 - 11/23/17 09:20 PM Re: Help me identify this rear end [Re: Neil]
amxautox Offline
Still Retired. Still Posting on Moparts. A Lot.

Registered: 05/13/03
Posts: 96644
Loc: On The Boat, On The Lake, Wa. ...
Oh ya, forgot about the flatness. I don't know anything about any GM types.
_________________________
Tom

"Everyone should believe in something; I believe I'll go fishing."

-Henry David Thoreau

Men and fish are alike. They both get into trouble when they open their mouths

author unknown


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#2408087 - 11/23/17 09:27 PM Re: Help me identify this rear end [Re: AZ_A12_BEE]
Neil Offline
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Registered: 01/19/03
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Loc: Eagle, Idaho
Not sure on the bolt pattern for cars way back then. Someone may have put other axles in it when they did the rear brake swap?

I'm not 100% sure it's an Old axle, but it looks like that more than anything else I can think of right now.

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#2408092 - 11/23/17 09:44 PM Re: Help me identify this rear end [Re: AZ_A12_BEE]
poorboy Offline
master

Registered: 01/19/03
Posts: 6362
Loc: Freeport IL USA
Are the ends of the axle flanges flat, or do they have a nut on the end? are the springs narrow,(like 2" wide)? It almost looks like the original 37 Plymouth rear end. That rear end was used up until 64. They were a lot like an 8 3/4 but nothing from the 65 on 8 3/4 interchanges. Gene

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#2408107 - 11/23/17 10:04 PM Re: Help me identify this rear end [Re: poorboy]
AZ_A12_BEE Offline
I Live Here

Registered: 08/19/03
Posts: 18559
Loc: Dreaming of the 808
Originally Posted By poorboy
Are the ends of the axle flanges flat, or do they have a nut on the end? are the springs narrow,(like 2" wide)? It almost looks like the original 37 Plymouth rear end. That rear end was used up until 64. They were a lot like an 8 3/4 but nothing from the 65 on 8 3/4 interchanges. Gene


I will have to pull a wheel and see
_________________________
69.5 A12 Bee, first purchased in 1976, car 169 on registry 69 Coronet R/T 440/4 spd 69 Coronet 500 Conv H code 383 4bbl/auto 37 Plymouth PU Find your spot on earth and ride it.

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#2408108 - 11/23/17 10:05 PM Re: Help me identify this rear end [Re: Neil]
Spaceman Spiff Offline
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Registered: 11/28/10
Posts: 3305
Loc: jersey
Originally Posted By Neil
Looky like an early Oldsmobile to me.

Ford 8" are flat on the bottom + the pinion bearings have a cover on the front behind the yoke, which this doesn't have.


Olds rears don't have a bump for the ring gear.
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#2408115 - 11/23/17 10:35 PM Re: Help me identify this rear end [Re: Spaceman Spiff]
Neil Offline
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Registered: 01/19/03
Posts: 12813
Loc: Eagle, Idaho
These appear to have the bump in the back, and a bunch of mounting brackets that Dave's doesn't have.

https://www.ebay.com/itm/1957-58-59-60-6...tMQ&vxp=mtr

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#2408120 - 11/23/17 10:46 PM Re: Help me identify this rear end [Re: AZ_A12_BEE]
Spaceman Spiff Offline
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Registered: 11/28/10
Posts: 3305
Loc: jersey
‘57 olds has leaf springs. Those in the picture from eBay aren’t from a leaf spring car.
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#2408129 - 11/23/17 11:28 PM Re: Help me identify this rear end [Re: Spaceman Spiff]
Neil Offline
I Live Here

Registered: 01/19/03
Posts: 12813
Loc: Eagle, Idaho
Here is a guy selling just the center section. It has three ribs on the drivers side and two on the passenger side with one angled up at the 10 o'clock position. Daves's rear end has too much dirt on it for me to see if the fill hole is in the same spot. Note to Dave to please wash his rear end before sharing pics please.

Tabs on the housing could have been cut off in the past. Or maybe it's not a 57-64 Olds Pontiac setup?


https://www.ebay.com/itm/3-64-DROP-OUT-V...=item3d4fe362ad

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#2408138 - 11/24/17 12:22 AM Re: Help me identify this rear end [Re: Neil]
John Brown Offline
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Registered: 05/28/12
Posts: 888
Loc: South Bend
I think that 57 58 59 and 60 Olds all used leaf springs. 57 Pontiac had leafs, but 58 through 64 Pontiac used coils, along with the 61 through 64 Oldsmobiles.
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#2408141 - 11/24/17 12:24 AM Re: Help me identify this rear end [Re: AZ_A12_BEE]
John Brown Offline
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Registered: 05/28/12
Posts: 888
Loc: South Bend
From your other pictures the axles don't appear to be the type that have a nut holding them on.

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July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.

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#2408142 - 11/24/17 12:25 AM Re: Help me identify this rear end [Re: AZ_A12_BEE]
DoctorDiff Offline
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Registered: 01/20/03
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Loc: Polson, MT
That is a '57-'64 Olds/Pontiac rear.
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#2408167 - 11/24/17 07:48 AM Re: Help me identify this rear end [Re: DoctorDiff]
moparx Offline
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Registered: 09/03/03
Posts: 9183
Loc: north of coder
Originally Posted By DoctorDiff
That is a '57-'64 Olds/Pontiac rear.

wouldn't that have a 5" bolt pattern if the axles are stock ?
beer

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#2408205 - 11/24/17 09:38 AM Re: Help me identify this rear end [Re: moparx]
feets Offline
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Registered: 01/20/03
Posts: 27177
Loc: Irving, TX
Originally Posted By moparx
Originally Posted By DoctorDiff
That is a '57-'64 Olds/Pontiac rear.

wouldn't that have a 5" bolt pattern if the axles are stock ?
beer



Lotsa things get tweaked in 60 years...

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#2408257 - 11/24/17 11:44 AM Re: Help me identify this rear end [Re: feets]
AZ_A12_BEE Offline
I Live Here

Registered: 08/19/03
Posts: 18559
Loc: Dreaming of the 808
Originally Posted By feets
Originally Posted By moparx
Originally Posted By DoctorDiff
That is a '57-'64 Olds/Pontiac rear.

wouldn't that have a 5" bolt pattern if the axles are stock ?
beer



Lotsa things get tweaked in 60 years...



Thats for sure, I don't know how many different motors this has had over the years but guessing from all the welded on brackets or what's left of them I'm guessing at least 3 different motor set ups
_________________________
69.5 A12 Bee, first purchased in 1976, car 169 on registry 69 Coronet R/T 440/4 spd 69 Coronet 500 Conv H code 383 4bbl/auto 37 Plymouth PU Find your spot on earth and ride it.

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#2408260 - 11/24/17 11:57 AM Re: Help me identify this rear end [Re: AZ_A12_BEE]
ChryCoGuy Offline
master

Registered: 10/04/05
Posts: 5589
Loc: Canada
Found this link on the HAMB regarding bolt patterns. Don't know if it's much help to you, though.

http://www.roddingroundtable.com/tech/articles/boltpat.html

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