[Morris] Throwout bearings redux

[Kevin Wayne Williams]

Well, my new, roll-pin free 1275 throwout bearing arrived, and it's at 
least a 1/4" taller than my other 1275 throwout bearings. Obviously, one 
or more of these bearings is not a 1275 throwout bearing.

Does anyone know the exact measurement points to distinguish 1098 from 
1275 bearings? I know 1275s are taller, but for all I know this bearing 
is from a Yugo or something, so I don't want to just blindly install the 
tallest of the set.

KWW