muncie m21 4 speed question

I was wondering if the clutch fork on a m21 muncie 4 speed can be taken out and installed without removing the tranny and still ensure its positioned right on the throwout? I have adjusted my clutch and it hold pedal for a few pumps then it has nothing I believe the cluthc fork isnt holding or is bent ..Ive got a new adjustment rod (heavy duty) and it seemed to be fine until recently. I had auto headers on a 4 speed initially ..came on the car and I didnt reaklize it. So i removed the headers went to exhaust manifolds and got the correct legnth rod once again seemed fine until recentlt but now it wont hold the adjustment adn I can move the fork alot ....any input if anyone thinks its a bent or worn out clutch fork and about replacing it w/ or w/o pulling the tranny

The tranny and bellhousing will have to come off to change the clutch fork.

I had the same problem several years ago. After I got everything apart I found out the clutch fork wasn't the problem. Seems the cross shaft had split (on the bottom where you couldn't see it too well until it was off). Might be something you want to check before you pull the tranny out. The easy way is to have someone depress the clutch while you watch the linkage and make sure everything is working properly.