Extension housings were different, however, as the side snap ring access cover housings had additional strength over the extension housing with the bottom snap ring access.
Hope this helps ..
Was there ever a side snap ring tail housing on a car?
I thought that was on the Truck Transmissions also known as a loadflight(truck) instead of a torqueflight(car).
Didn't the loadflight also have an extra lining in the clutch setups?
