Can someone give me the skinny on how to tell if a converter is for a 904 or 727? The second question would be does Lock up vs. Non lock up make any difference.
The converter hub will measure approximately 1.875 inches in a 727. The converter is a lot bigger in size than a 904. Not sure on the 904 hub size. Yes, lock up makes a difference about 250-300 rpm lower cruising rpms. U can’t interchange them. Kim