Factory A-Body housing width?

[johnparts]

Hey Guys what is the factory drum to drum housing width for our a-bodies?

 

[abodyjoe]

http://www.moparts.org/Tech/Archive/axle/16.html


Mopar 8 3/4" Rear End Dimensions

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8 3/4" axle shaft lengths measured from the tip of the splined end
to the outside of the flange:

A BODY
'66-'72= 27 11/16"

B BODY
'65-'67= 28 7/8"
'68-'70= 29 3/16"
'71-'74= 30 5/8"
'71-'73 wagon= 31 21/64"

C BODY
'65-'69= 30"
'70-'71= 30 5/8" (Chrysler & Fury)
'70-'73= 31 21/64" (and '69 wagon)


IMPERIAL (Large Bolt Pattern)
'65-'66= 30 1/8"
'67-'69= 30 5/16"
'70-'71= 29"
'72-'73= 31 7/16"

E BODY
'70-'74= 29 31/32"

A100
'65-'70= 30"

D100
'65-'71= 31 1/8"
'72-'74= 31 21/64

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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"

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Rear end widths, drum-to-drum:

A BODY
'66-'72= 57 1/8"

B BODY
'62-'63= 58 1/2" (And '64 Max Wedge)
'64 = 60 7/8" (Exc.Max Wedge)
'65-'67= 59 1/2"
'68-'70= 60 1/8"
'71-'74= 63"
'71-'73 wagon= 64 3/8"

C BODY

'65-'69= 61.75"
'70-'71= 63.0" (Chrysler & Fury)
'70-'73= 64 3/8" (and '69 wagon)

IMPERIAL
'65-'66= 61 15/16"
'67-'69= 62 5/16"
'70-'71= 59 3/4"
'72-'73= 64 9/16"

E BODY
'70-'74= 61 5/8"

A100
'65-'70= 61 3/4"

D100
'65-'71= 63 15/16"
'72-'74= 64 3/8"

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Spring perch widths (center-to-center)

A BODY
'66-73= 43"

B BODY
'62-'70= 44"
'71-'74= 47.3"

C BODY
'65-'73= 46"

E BODY
'70-'74= 46"

 

[abodyjoe]

if your using big bolt pattern axles chances are the drum to drum measurement will be slightly wider.

 

[johnparts]

Thanks Guys I just needed this number to see if I'm narrowing enough off of my axle and if I have my pinion offet correct.

 

[abodyjoe]

make sure you weld the spring perches on at the proper angle too..

stock with the perches level the pinion will be 5* up.

 

[johnparts]

make sure you weld the spring perches on at the proper angle too..

stock with the perches level the pinion will be 5* up.

Triangulated 4 link

 

[johnparts]

And I'm sending it out to have the housing ends welded on at Strange.

 

[abodyjoe]

sounds good. just wanted to make sure you were covered.

 

[crackedback]

Pinion offset?

On an 8.75, make the rear symmetrical. Same length tubes on each side. The pumpkin takes up the offset on 8.75 rears.

Dana 60 make the drivers tube 1 3/8" longer than pass side.

 

[johnparts]

Pinion offset?

On an 8.75, make the rear symmetrical. Same length tubes on each side. The pumpkin takes up the offset on 8.75 rears.

Dana 60 make the drivers tube 1 3/8" longer than pass side.

9.25 Chrysler rear end

 

[crackedback]

Oh, never done one of them...