Mopar Rear Axle Dimensions

This page covers rear-axle sizes of passenger cars and pickups from Dodge, Plymouth, Imperial and Chrysler.

All measurements are from drum to drum: Sorted by length
1966-1972 A-body 57-1/8″
1962-1963 B-body 58-1/2″
1964-1967 B-body 59-1/2″
1970-1971 Imperial 59-3/4″
1968-1970 B-body 60-1/8″
1970-1974 E-body 61-5/8″
1965-1969 C-body and 1965-1970 A100 Vans 61-3/4″
1965-1966 Imperial 62″
1967-1969 Imperial 62-5/16″
1970-1971 C-body and 1971-1974 B-body 63″
1965-1971 D100 pickup 64″
1969 C-body wagon and 1971-1973 B-body wagon 64-3/8″
1970-1973 C-body and 1972-1974 D100 pickup 64-3/8″

Rear Axle widths, drum-to-drum: Sorted by body-type/model
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″ (incl. ’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″

8-3/4″ Axle Shaft lengths, from the splined end to outside flange end:
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″ (incl. ’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

8-3/4″ Housing Widths, from one end to the other end:
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″ (incl. ’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″

Spring perch distance/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″


Dana 60 rear axle dimensions and specifications

Bodystyle Housing width Flange to flange Spring perch distance Sure-grip type Yoke type
'66 B-body 54-1/4" housing 59-3/8" axle flange to flange 44" perch 23 spline Power-Lock Sure-Grip 1330 U-bolt yoke
'67 B-body 54-1/4" housing 59-3/8" axle flange to flange 44" perch 23 spline Power-Lock Sure-Grip 1330 strap yoke
'68-'69 B-body 54-15/16" housing 60-1/16" axle flange to flange 44" perch 23 spline Power-Lock Sure-Grip 7290 yoke
'70 B-body 54-15/16" housing 60-1/16" axle flange to flange 44" perch 35 spline Power-Lock Sure-Grip 7290 yoke
'71-'72 B-body 57-7/8" housing 63" axle flange to flange 47.3" perch 35 spline Track-Lock Sure-Grip 7290 yoke
'70 E-body 56-31/64" housing 61-5/8" axle flange to flange 46" perch 35 spline Power-Lock Sure-Grip 7290 yoke
'71 E-body 56-31/64" housing 61-5/8" axle flange to flange 46" perch 35 spline Track-Lock Sure-Grip 7290 yoke

(If anyone notices an error or something wrong in the above listings, please leave a message below or contact me and I’ll update this page with the correct information)

Exploded view images of Mopar rear axles and components;

Exploded view of a Mopar 7-1/4" Rear Axle
7-1/4" Rear Axle
Exploded view of a Mopar 8-1/4" Rear Axle
8-1/4" Rear Axle
Exploded view of a Mopar 8-3/4" Rear Axle
Mopar 8-3/4" Rear Axle

26 Comments

  1. I recently purchased what appears to be a 71-72 B body dana 60 rear. Can this rear be used in a 70 cuda? I know spring perches are to be reloctaed a tad, but will the extra width ( approx 1.5 ” ) cause issues with 15″x7″ wheels and P235 60 BFG T/A radials? Date code: 8 13 061 and BOM #: 603222 2. Anyone? Much appreciated, Matt

  2. Hello Matt,
    If the current wheels have plenty of space towards the fender edge, the wider rearaxle will pose no problem. If you don’t have more then 1.5″ of space, you’ll probably need wheels with a different offset.

  3. Thanks for the input. Will mount tires tomorrow and check. If not, may sell axle to fund correct model. I hear the 71-72 axle is even more rare than the e-body models.

    Matt

  4. Matt i am looking for a 71-74 b body dana 60 if you still have, email me with pics and demenision.

  5. Hey, im wondering if it is a surtain way the Flange with the Nut and washer have to be set correctly in the Pinion? Example if i took it out and forgot where it should be how do i adjust it after the rear axle gear ratio, and how tight the nut should be tightned to in Foot-pounds so i dont damage the Crush sleeve. (after the last owner he took it of and i need to replace it back to its original position and tightnes) sorry for not spelling correctly.
    or does need a repair by a professional mechanical enginer?

  6. I HAVE A 1964 DODGE D100 1/2 TON PICKUP THAT HAS THE OLD TAPERED AXLES, THAT NEED TO BE REPLACED.CAN ANYONE TELL ME IF MY REAR HOUSING IS THE SAME DIMENTIONS AS THE 1965-1970 D100 AND COULD I USE THE NEWER AXLES IN THE HOUSING I HAVE?ANY HELP WOULD BE GREATLY APPRECIATED.

  7. Hi Tony,

    You cannot use newer axles in the old housing. The bearings are different in size, aswell as the axle housing ends.

    I have no experience with pickups myself but I don’t think the axlewidths changed very much over the years in the ’60s. I think you should be able to swap a newer axle under there without much issues.

  8. Looking at a 70 B body rear end to put under my 62 Dart 440.
    It’s 60 1/8 wide and I want to put 275/60 r15 on American racing wheel on it.
    I have an 8 1/4 1977 cop rear end under it now.
    Also will the drive line work or do I need a different one?
    Thanks

  9. I like this site, straight answers, my 72 dart has 7 1/4 rear and i have a 66 charger 8 3/4 what do i need to do with wheels and tires to make this work? thanks geo

  10. Very informative article, i am regular reader of your website.
    I noticed that your site is outranked by many other websites in google’s search results.
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  11. hey what other axles will fit under a 66 dodge dart, and what all will I have to change to switch to disk brakes on the front

  12. building a rear for 65 sport fury, is the 46″ center to center on spring perches correct and do you know the perch angle

  13. I have a 1967 Coronet big block car. 727 trans. I have at my disposal the stock 8 3/4 non sure grip rear and a 1978 Ford F100 4×4 9″ 31 spline axles, nontapered housing non trac lok. I don’t know wether to leave them stock, narrow them, use one over the other, and if trac lok/ sure grip can be added and which has the gear ratio I need and if that can be changed? I don’t know much really. Need help! The leaf springs have been relocated to under the frame rails, so perches will have to changed.

  14. I have 64 D100 and would like to swap out the rear end differential. Anyone know what other rear end will fit my truck?

  15. Hi!
    I have a 1971 charger B body with 8 3/4 differentiel!
    Will a 1975 Chrysler Newport C body differentiel fit the charger ?

  16. Hi I have a 65 Plymouth Valiant the car had a slant 6 I want to install a 340 V8 and an auto. My question is will a 727 auto physically fit in the car with out major floor modifications. Thanks for your help

  17. i have a 1962 dodge d100 and I’m looking for a rear end swap for it. direct bolt on if possible and suggestions? nothing wrong with the one i have other than three studs are broken off the drum and i want to eventually go disc brakes on the back later in my build.

  18. Hi,
    I have a 1971 Charger whit 383 4 barrel. Before the car arrive Norway ,there was put in a 2.76,whit a 742 case to replace the original 3.23. Do you now what case that would normale be in this care? 741 or 489?

  19. I have a 1958 Imperial 4 door and want to convert the brakes to all disc. What rear axle should I be searching for that will give me disc brakes. My standar axle has a 2.93 ratio. Any help is appreciated

  20. Hi Brian,
    Not sure when exactly, but ’90s and newer Jeeps have discbrake rear axles, but they have mostly 4.5″ bolt circle. Which would be different from your Imperial’s larger boltcircle.

  21. Hi I am looking for a rear end out of a 72 to 74 D100 pickup or 70 to 73 c body or one out of a 69 c body wagon or a 71 to 73 b body wagon.
    I am in the North Bay aria can any one help me find one. Thanks. Bob Keith

  22. I have an 8 3/4 rear end housing that measure ~56 1/2. Looking at the chart, it looks like it would be a 70-74 E body. The thing that had me wondering is the lug pattern. The axles that were in it had a lug pattern larger than 5×4 3/4.
    It came with a 742 stuffed with 2.94 gears on a sure grip.
    Any thoughts on what it would be from?

  23. chris I think the rear end is imperial I know in mid 60’s they were 5×5! but don’t ware springs should b.

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