Interchange question

-
W

Wayne Thomas

New Member
Joined
Dec 7, 2020
Messages
4
Reaction score
1
Location
Clio, Michigan
My buddy has a 68 or 69 Dart. I built him a really nice and aggressive transmission and helped a little building his motor but the rear end is an issue. It's a Ford 8.8 we believe and he wants to get an 8 3/4 housing. I suspect the flange to flange distance is the same in both previous and later model years but I don't actually know the interchange range for that car.

Maybe you guys could help me out with what the correct one would be for that car and what other years will interchange.

Another Mopar buddy down in Knoxville knows a guy that's a lot of A body rear housings, pigs and complete rear axles but before I have him inquire about buying one I want to do my homework.

Thanks in advance,

Wayne
 
66 to 76 valiant, dart, and up to 69(IIRC) barracuda are all interchangeable.
If it was originally a slant 6, 273 2bbl ,318 2bbl it would be a 7 1/4, 340, 383 would be 8 3/4, 440 it would be dana 60. Later years some time in the early 70s had a 8 1/4,

The cars fender tag will have a code that will tell you what it originally came with
 
Dana67Dart said:
66 to 76 valiant, dart, and up to 69(IIRC) barracuda are all interchangeable.
If it was originally a slant 6, 273 2bbl ,318 2bbl it would be a 7 1/4, 340, 383 would be 8 3/4, 440 it would be dana 60. Later years some time in the early 70s had a 8 1/4,

The cars fender tag will have a code that will tell you what it originally came with
Click to expand...

8-3/4's in A-Body's were used from 66-72, after that they went to the 8-1/4. No Dana's were ever used in an A-Body except the 68 Hemi Dart and Barracuda which would have a B-Body Dana on 4-speed cars only. There were axle codes on 66-68 A-body's but not from 69-72. The A-Body 8-3/4 are all small bolt, 5 on 4" bolt circle but aftermarket axles can be bought.
 
8 3/4 Looks like this:
0807171733.jpg


0806171639.jpg

'67 A body Dart
 
sweet. I assume there are numbers on the housings. Can anyone tell me where they would be and what the numbers would be for a body? I know an 8 3/4 when I see one but on the floor I wouldn't know one from an a body or a b body. Or do you go by a measurement?
 
Wayne Thomas said:
sweet. I assume there are numbers on the housings. Can anyone tell me where they would be and what the numbers would be for a body? I know an 8 3/4 when I see one but on the floor I wouldn't know one from an a body or a b body. Or do you go by a measurement?
Click to expand...


Mymopar.com
has width measurements for the 8 3/4 housings and their car applications so you can ID them. Spring Perch dimensions too.
 
33IMP said:
Agree. No a body m-code with a stick or dana. 727/8 3/4 only.
A body spring perch 43", narrow b body 44". The later b body, c body etc., i would have to look up.
Click to expand...
Ok, so the correct measurement for an a body, in this case a 69 Dart, is 43" center to center?

Thanks,
Wayne
 
You must log in or register to reply here.
-

Back
Top