Oh Yeah,
It,s definately a HO Series rear
question remains is it a HO 52 or a HO 72 pumpkin.
Cant tell from the pics.
Are the wheels/lugs an 8 pattern?
If they are it,s the right ham.
Now the question remains,what ratio is it.
Get the cast #,s off the case and get the stamped #,s off the Case.
Regards,
steve sr.