67 GTX Rear End Identification

[67GTX440]

I had a guy tell me my car had a Ford 9 inch rear end yesterday. Not sure if it was just some remnants of blue paint, but I know some have done this. Can anyone identify what I have?

I am not sure how much gets swapped normally when this is done. Just the differential housing and rear end gears or the axles, brakes and everything.

I am getting ready to replace a broken left hand wheel stud on the left rear and that would seem odd for a complete Ford swap. I don't know if I am buying a Ford stud and wheel bearing, Mopar stud and wheel bearing or what?

The casting number 2070742 on mine makes me think it is an original 8 3/4 inch housing and correct for the year. It may even be original to the car, in spite of the blue paint.

 

[Mocajava]

I think Chrysler is the only one that did left hand studs. The xxxx742 designation on the driver side of your differential marks it as a Chrysler 8 3/4.

 

[mmissile]

It's obviously an 8 3/4, just by the shape.

 

[absolutfrase]

What the other two posters stated. Have the same rear axle in my GTX.

 

[Hemi 354]

That guy needs an education on Chrysler rears. It's definitely a '742' 8 3/4 rear.

 

[Bad GTX]

Funny thing is I was placing my rear fender lip chrome yesterday and had to remove the back tires to do so. This gave me a good view of the rearend. Called my wife over with pen and paper to record the numbers. The exact numbers you stated are the same on my 67 GTX

 

[MOPOWER871]

:book1::book1::book1:you most likely have 3:23 gears also

 

[67GTX440]

Thanks for all the responses. I went back to educate the guy. I also found out you can't put a deep socket on the two bottom bolts of a nine inch Ford center. That is one way they are identified.