Help! Clutch fork wont install

I can not get my freakin clutch fork to go on right. It should be completely behind the lip on the T/O bearing correct? I have one 3 of these clutches and never had this problem. I thought I had it on, but it still had tons of play in all directions. I went ahead and finished the install, and got it on the ground, started it up, went to push the clutch in to put the car in gear, and it just screeched and howled from down there. I pumped the clutch a couple of times and it went away, I got it into gear and moved the car. Then I shut it down and tried again and all it will do is make that noise and wont go into gear. Its a freshly rebuilt T-56, Mcleod single disk, and a stock pressure plate. Anyone have any ideas? Thanks

Make sure the metal clips on the back of the fork are not damaged. I broke mine when I did my clutch and put everything back together w/o checking it. It would not seat properly which made it impossible to disengage the clutch. Had to pull the tranny back off about 3/4 inch to fix it.

When you say the back, is that in relation to the back end of the car?

The clips on the fork that hold it up on the pivot. Actually I think they are on the side facing the clutch ...it's been a while, I don't remember exactly how it went together... but I know the ends of mine were broken off and I couldn't clip it back on the way it was supposed to.