ok i just did a clutch . i noticed my pilot bushing was way oversized and the front input shaft of my muncie 4 speed has alot of play... i replaced the pilot bushing for a bearing and now it has no vibrations in the car which is awesome. can you replace the input shaft bearing without too much trouble. im guessing thats what is wrong and making the shaft have play?or should i get the whole thing overhauled? any info would be appreciated.

 

Yes the shaft should have play. There's nothing holding it still when it's out of the car; that's why it needs a pilot bearing in the first place.

Yes it's fairly easy to change out the clutch gear bearing. It has a huge nut on the front that holds it on the clutch gear; you need eitehr a great big pair of Channellocks, or a spanner of whatever size (it must be at least 1¼" IIRC).

No the clutch gear bearing isn't what's causing the play. There are 2 bearings holding up the clutch gear and the main shaft; one in the middle of the clutch gear, and one in the middle of the main shaft. There's a roller between the 2. The rear of the main shaft is held in place by the drive shaft yoke, which in turn is held in place by the ext hsg bushing; the front of the clutch gear is held in place by the pilot. With the trans out of the car, the 2 shafts are free to wobble around however much they want until they bump into somehting inside the transmission, beacuse there's nothing holding the ends of them still.

If the transmission works right and shifts good, like no noise or vibes or crashing gears or wnatever, I'd leave it alone.