The thin t/o bearing is for V8's, the longer is for 6-cylinder engines. If it feels like the clutch is not disengaging, then I would say you've got the wrong t/o bearing.
I'm sure you've adjusted clutch free play as suggested by Sleepy, probably should have replaced both pivot balls for the clutch shaft as well as the pivot ball for the clutch fork, plus the clutch fork itself.
Lever blocks, LOL, kind of like relative bearing grease? New one on me, never heard of them. Did you read instructions?