I think the bearing length has to do with the type pressure plate. However it’s been way too long since I messed with one. Maybe some of the other guys that are way more knowledgeable than me will explain it.

1 7/8 is the long one
1 1/4 is the short one
Last edited by Justhorsenround; 07/27/2018 1:25 AM. Reason: Added measurements