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Rear Diff housing dimensions
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   Forward Look Technical Discussions -> Transmission and Rear AxleMessage format
 
Shep
Posted 2012-03-28 7:49 PM (#314264)
Subject: Rear Diff housing dimensions



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Location: Chestertown, NY ( near Lake George)
Probably already posted somewhere, but here we go.



(Scan0003 (3).jpg)



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59 in Calif
Posted 2012-03-28 10:25 PM (#314285 - in reply to #314264)
Subject: Re: Rear Diff housing dimensions


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Hey Shep, Can you post the left side that shows the 'body type', as most of that info is not being shown. Thanks! I don't mean to be a PITA. Jerry
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Shep
Posted 2012-03-29 9:16 AM (#314317 - in reply to #314285)
Subject: Re: Rear Diff housing dimensions



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Jerry, yeh I had trouble resizing this, in order top to bottom: 8-1/4 A body, 8-1/4 B body, 8 1/4 B & C body, 8-1/4 F body, 8 3/4 A body, 8 3/4 B body, 8 3/4 E body, 8 3/4 B body -71-74 only , 8 3/4 Sta. wgn.
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DeSotohead
Posted 2012-03-29 9:45 AM (#314320 - in reply to #314317)
Subject: Re: Rear Diff housing dimensions



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Shep...

If you can email me this, I can resize and swap the photo for the one will all info included.
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dukeboy
Posted 2012-03-30 7:14 AM (#314492 - in reply to #314320)
Subject: Re: Rear Diff housing dimensions



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A Side note, the A BODY 8 3/4 rear is ALWAYS the "Small bolt" pattern. (5 on 4" circle)....Didn't made an A-body 8 3/4 rear with big bolt pattern.

Edited by dukeboy 2012-03-30 7:15 AM
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wayfarer
Posted 2012-03-30 11:32 AM (#314529 - in reply to #314264)
Subject: Re: Rear Diff housing dimensions



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Apparently some variations in printed literature exists. I have used these numbers for a very long time without much disagreement.
If anyone has an assembled axle on the floor perhaps they could take a couple of measurements.


Housing widths, flange to flange
A BODY '66-'72= 52 5/8"
B BODY '62-'63= 53 1/4" (And '64 Max Wedge)
'64 = 55 5/8" (Exc. Max Wedge)
'65-'67= 54 1/4"'
68-'70= 54 15/16"'
71-'74= 57 7/8"'
71-'73 wagon= 59 7/16"
C BODY '65-'69= 56 3/4"'
70-'71= 57 7/8" (Chrysler & Fury)
'70-'74= 59 7/16" (and '69 wagon)
IMPERIAL '65-'66= 57"'
67-'69= 57 3/8"'
70-'71= 54 3/4"'
72-'73= 59 5/8"
E BODY '70-'74= 56 31/64"
A100 '65-'70= 56 3/4"
D100 '65-'71= 58 5/16"'
72-'74= 59 7/16


Edited by wayfarer 2012-03-30 11:36 AM
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BigBlockMopar
Posted 2012-03-30 12:10 PM (#314532 - in reply to #314264)
Subject: Re: Rear Diff housing dimensions



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I recently narrowed a C-body housing to A-body width and using new axles.
I have a few rear ends I can take measurements off.

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57chizler
Posted 2012-03-30 3:20 PM (#314565 - in reply to #314264)
Subject: RE: Rear Diff housing dimensions



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As usual, like most rear end dimensions published on the web, those in the OP are wrong.

Edited by 57chizler 2012-03-30 3:21 PM
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BigBlockMopar
Posted 2012-03-30 4:43 PM (#314588 - in reply to #314264)
Subject: Re: Rear Diff housing dimensions



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I've gathered a fair number of rear axle housing and axle measurements on my website as a reference. Gathered them from various sites and tried to weed out the wrong info, but I don't know if the info I have listed is still correct.
If anyone sees anything wrong I would gladly ike to hear about it and make sure the info is correct.

http://www.bigblockmopar.nl/tech/mopar-rearaxle-dimensions/

Edited by BigBlockMopar 2012-03-30 4:44 PM
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Shep
Posted 2012-03-30 7:48 PM (#314616 - in reply to #314588)
Subject: Re: Rear Diff housing dimensions



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Location: Chestertown, NY ( near Lake George)
Drum to drum means outer edge of drum?, none of the dimensions match what I posted, of course the methodology is different.
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BigBlockMopar
Posted 2012-03-31 4:19 AM (#314678 - in reply to #314264)
Subject: Re: Rear Diff housing dimensions



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Measuring dimensions 'exactly' with a tape-measure is pretty much impossible if the 3rd member is still installed in the housing. This alone could give over .5" differences I guess.
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wayfarer
Posted 2012-03-31 11:26 AM (#314698 - in reply to #314264)
Subject: Re: Rear Diff housing dimensions



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The easy way to measure when working alone:
Remove drums; clamp a bar against the face of each flange that will project beyond the usual obstructions;
hook your tape to one of the bars and measure to the inside of the other bar then SUBTRACT the thickness of the first bar.
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57chizler
Posted 2012-03-31 3:46 PM (#314739 - in reply to #314588)
Subject: Re: Rear Diff housing dimensions



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The dimensions noted by wayfarer and BBMopar are correct, I know because I compiled them and posted them for the Moparts site years ago.
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mikes2nd
Posted 2020-10-17 9:25 PM (#604571 - in reply to #314264)
Subject: Re: Rear Diff housing dimensions


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this doesnt include any fwl cars... which is weak

57 Dodge is 59.5?

anyone have a FWL list?

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57chizler
Posted 2020-10-18 3:05 PM (#604592 - in reply to #604571)
Subject: Re: Rear Diff housing dimensions



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Dimensions for the '57-'61 full sized cars are:

Housing width= 55 5/8"

Overall width drum-to-drum= 60 7/8"

Spring centers= 45 1/2"
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Powerflite
Posted 2020-10-18 6:03 PM (#604601 - in reply to #314264)
Subject: Re: Rear Diff housing dimensions



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For completeness:
'55-'56 Dodge/Plymouth Drum-2-Drum: 59 15/16", spring perch centers: 41"
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mikes2nd
Posted 2020-10-18 6:24 PM (#604604 - in reply to #314264)
Subject: Re: Rear Diff housing dimensions


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imperials had different housings in 1960-61-62

 

95+ ford Explorer V8's have disc brakes and 59.5 inch disc to disc.  Think they are good till 2001 when they went IRS in 02... removed the v8

91-94 had drum brakes

 



Edited by mikes2nd 2020-10-18 6:34 PM
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57chizler
Posted 2020-10-19 2:11 PM (#604639 - in reply to #604604)
Subject: Re: Rear Diff housing dimensions



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Location: NorCal
mikes2nd - 2020-10-18 3:24 PM
imperials had different housings in 1960-61-62


Yes, about 1 3/4" wider overall.
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