Another difference is that from a certain engine number onwards & i would imagine its efi models, the gear selector shaft has a thicker diameter & therefore the clutch covers are NOT interchangeable as i have just found out.
I fitted the efi black sprocket & stator casings to my 07 carbed America, no problem. The guy i swapped with said that my chrome clutch cover wouldnt go on his efi Speedmaster as his gear selector shaft was too fat for the whole. Just been out to the shed to offer the efi casing on my engine & my gear selector shaft rattles around in the efi casing hole & doesnt even touch the roller bearings.
