Rear diff number matching

[68bigblock]

Is the rear diff number matched to the car like the motor and trans? and if so where is the stamping?
Thanks

 

[MOPARMITCH]

The differential would not be matched to the car via the VIN. However the casting dates on it should co-inside with the build date of the car if it was original.

 

[68bigblock]

Ok i can stop looking, Thanks