What kind of rear do I have?

[67DodgeDart360]

Hi, I’m trying to switch my 5x4 axles To 5x4.5 lug pattern. I think my rear was out of a 71 Dart. Right now it’s in my 67 Dart. I’m not sure what rear I have. Or what spline axels I have. And also what stuff I need to change to 5x4.5. I know Dr Diff has some axles I can use but I need to make sure I purchase the right ones. I have a 276 tag that’s on the rear. Please see all pictures. Thanks


https://www.doctordiff.com/axle-pkg-stock-length-mopar-5x4-1-2-bolt-pattern-pair.html

 

[cudascott]

8.75 rear but need to see other side of the differential
to see what case you have.

 

[Professor Fate]

8.75 differential, and if it is small bolt pattern, then it's a stock A body rear.
The factory never altered from 30 spline axles, the 35 splined ones are race axles to be used with a spool.
The 276 tag on the rear is the installed gear ratio- 2.76:1. Not exactly performance oriented, but you'll have a great top end on the freeway.
You will also need to get some B, E, or C body brakes (backing plates, drums, hardware) to go with your new axles.

 

[MerlinsMopar]

Dr diff stock a body will work but you will need the backplates etc as stated above. Also will kick the backspacing out a 1/2".
Just in case you are getting rims, measure after the conversion is done.

 

[Demonic]

You have an 8 3/4 as others have said. If the ratio is really 2.76, save your money. You'll never stress a 4" bolt pattern w those gears. Seriously - Pulling the axles is the first step to change gears. A set of 3.55's or 3.91's would seem like a huge difference.

Where in Maryland? There's a few of us spread around.

 

[Jadaharabi]

Call Doctor Diff.
Or use @DoctorDiff here

 

[Lord Sparky]

Tricky question. I always tell my wife it’s perfect!