Early Alfettas(75- late76) clutch assemblies had a straight clutch shaft. Later Alfetta(late76- 79) clutch assemblies had a tapered shaft. I know that the type of shaft dictated which type of rear clutch shaft bearing you had to use. My question is -assuming you use the correct rear shaft bearing, can you install an early clutch assembly in a "late" Alfetta and visa versa? I ask this because periodically newearly style clutch assemblies appear for sale on the internet.