Rear End Widths

[Red63440]

I found this on line and is from a Mopar tech site, the measurements are outside flange to flange. Mods may want to make this a sticky if it proves to be correct.

Housing widths, flange to flange

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"

Spring perch widths (center-to-center)

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

 

[moparmarks]

59.20 1962-1970 8 3/4 B-body

This is incorrect. There are 4 diiferent widths for 62-70B.

 

[Red63440]

I would like to get a correct list of the lengths.

 

[Red63440]

Changed the original post to reflect the 4 different lengths, also added measurements between spring perches.

 

[YY1]

Yea, the correct one is out there, but it is a pain to find.
It's in text only and the columns don't line up.
I reformatted it and posted it here quite a while ago, but it never got a sticky made.
Most people post the one chart that doesn't show the 66/67 width correct.
Are you sure 65 is the same as 66/67?

 

[Red63440]

Since I don't actually have all of the housings available I can only report on what I found in print until someone that has access to both can give feed back.

 

[moparmarks]

B BODY Drum to drum
'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"
Heres the correct widths. I have all these rears except a MW. Have checked these to be correct.

 

[moparmarks]

On Moparts in the tech archive under "Rear Axle" there are 2 listings.
Axle lengths 83/4 is correct
Rear axle widths is NOT correct.

 

[Red63440]

Great, thats what was needed.....this all started because I found that the rear under my 63 is from a 73/74 and had the rubber mounted springs. I converted the mounts to the earlier style but found out yesterday when I tried to mount a set of wider rims that I have a problem. I wanted to find out what length rear housing I need to look for and based on what you posted it will be a 65/67 housing. Thanks Mark!

 

[ply64post]

Rearend Measurements

To all

There always seems there are different measurements on rearends and I can understand why this happens.I don't know the answer for sure they are kind of like measuring a beachball without taking them completely apart .The true way I would think is to measure with the housing completely stripped and measure thru the housing from flange to flange and you can add the flange to the axle face for overall width..I do have some stripped housings and I will try to get some measurements.

Jeff:sFl_america2:

Body line Track Perches Notes

A-body, 65-72 55.6 43.0 4" lug bolt circle, offered in heavy duty apps.
B-body, 62-70 59.2 44.0
B-body, 71-72 62.0 47.3
B-body, 71-72 63.4 47.3 station wagon
C-body, 64-72 63.4 47.3
D-body, 64-72 63.4 47.3
E-body, 70-74 60.7 46.0

Axle Housing PN Application Housing Width/Axle Information
1045744 57-61 8-1/4" same width as 57-62 fullsize V8
2070269 and 63-64 Chrylser/880 flange to flange: 55-5/8" (est.)

Note 8-1/4" axles 57-61 have different housing part numbers.

1945745 57-62 fullsize V8 same width as 63-64 Chrylser and 880 2070270 SG axle shorter than open rear axle flange to flange: 55-5/8" (est.)

2070960 63-64 Chrysler same width as all 61-62 rear ends listed 63-64 880 above ( 2070259 / 2070270 )
SG axle shorter than open rear axle (63)
SG axle and open axle same length (64)
flange to flange: 55-5/8" (est.)

NA 65 C-body axle 2404228, same housing and axles as A-100 vans and trucks.

2800175 66 C-body unknown

2881003 69 C-body flange to flange: 56-7/16"

2881310 69 C-body wagon flange to flange: 59-7/64"

NA 70 C-body flange to flange: 57-3/4"

2070231 60-62 Imperial Imperials: 57-63 SG, all 64 axle 1829267

2070961 63-64 Imperial Imperials: 57-63 open axle 1675449

2404208 65-66 Imperial different from above axles, 2404139

2800224 69 Imperial

2070539 62-63 B-body, flange to flange: 53-1/4"
64 Max Wedge Parts Manuals list four different axles for this housing:
2070573 741 case w/o SG 30-1/2" overall
2404003 742 case w/o SG 30-1/2" overall
2070695 741 case SG 30-7/16" overall
2404050 742 case SG 30-7/16" overall

2404271 64 B-body flange to flange: 55-5/8" (Hollander est) except 1/8" - 1/4" narrower than 2070270 housing Max Wedge axle 31-1/2" overall

2404143 65 B-body flange to flange: 54-1/2" uses axle 2404223

2643409 66 B-body flange to flange: unknown, thought to be narrower than 68-70 B-body

2852838 68-69 B-body flange to flange: 54-15/16"

3432295 70 B-body flange to flange: 54-29/32"

3507502 71-73 B-body flange to flange: 57-47/64"

3507501 71-73 C-body flange to flange: 59-1/8" 71-73 B-body SW

2800227 66-72 A-body flange to flange: 52-13/64" (70-71) 3432647 52-37/64" (72) 3432295

2852882 70-74 E-body flange to flange: 56-7/16"

Section 4: 8-1/4" Carrier Housing

From 1957 to 1964 Chrysler manufactured a front loading center section similar to an 8-3/4". Its ring gear diameter was 8-1/4". This is not related to the Spicer built 8-1/4" rear end used in Chrysler products in the Seventies.

From 1957 until 1961 or 1962, it used a case with a casting number 1828448. It appears that in 1963 and 1964 this gear set was installed in a 741 case. The 1828448 may have used a different housing flange pattern as it calls for a different housing (1045744,2070269). These rear ends were for extreme light duty and were only used in six cylinder applications. six cylinder station wagons used 8-3/4"s. Along other available gear ratios, there was a 3.31:1 for manual transmissions and a 2.93:1 for automatic transmissions.

 

[goose69]

I do a lot of layout and measuring of things at work that aren't able to be measured conventionally so 1 way I could suggest measuring while axle is assembled is to set it on top of couple jack stands or even if the axle is still in car with wheels off. I either use a laser-bob (a box that shoots a plumb line up and leaves a red dot on the floor) find the face u want to measure (end of axle tube, face of axle flange etc) and mark the floor. Duplicate on other side. Then just measure on the floor the distance between your marks. You can also do this using a plumb bob or sometimes just a framming square. Eliminates trying to measure over the pumpkin housing, brackets, spring perches, etc. And puts everything on a flat surface. This can be used for measuring all kinds of things (frames, wheel openings, etc).

 

[5.7 hemi]

That's a good way to do it goose69!!

 

[goose69]

Its saved a lot of headaches for me and helped a lot of friend's too. This is a good way to measure how big of tires will fit in wheelwells. You can take multiple measurements at same time (edge of fender lip, edge of springs and frame, face of drum or disk) and have a nice little map on your floor to calculate how big of tire to fit and wheel offset.

 

[Red63440]

Found a 67' 8 3/4" rear end housing and axels...will my backing plates bolt up to it?