* Front: Dana 44 (most common)
* Rear: Dana 44, Dana 60 (more common in heavier duty models)
To know for certain which axles are in *your* specific 1976 Dodge Ramcharger, you'd need to check the vehicle itself. Look at the axle housing for casting numbers which can be cross-referenced to identify the specific axle type. Alternatively, you can consult the original build sheet (if you have it) or a Dodge parts catalog from that year.