Thread: Fork won’t engage

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Hey all,

I have recently built a 2001 Jeep tj with a 350 sbc. I’m havinf some transmission issues, wondering if someone can direct me.

I have an AX15 tranny (5 speed Jeep) set up with a: Chevy bellhousuinf, pressure plate, flywheel, bushinf, throwout bearing, frok ... everything is Chevy. My issue is when I go to engaged the clutch ... the fork slides inside and jams the throw out bearing and it doesn’t move. Any idea how to prevent this ? Do I need to setup the hydraulic clutch so it presses the fork on an angle?

I’ve taken it all apart and the fork moved freely with the throw out bearing. But when it’s all back in, the fork for some reason keeps jamming.

Any suggestions will help... it’s a nice week here so would be a good time to take it all apart again.

Thanks in advance

I'm going to venture a guess that your clutch fork is sitting at a steep angle when it's on the throwout bearing, allowing the fork to slide off of the pivot ball when you push on the linkage? A picture of it installed would help us understand the problem. Just a guess, but you may need to get an adjustable pivot ball bolt to let you move that pivot point closer to the engine, flattening the clutch fork angle? Are you sure you've got the inside part of the fork on the throwout bearing right? https://video.search.yahoo.com/yhs/s...2&action=click

If that doesn't make sense post some pictures.

As I recall Chevrolet also used 2 different length throw out bearing holders (the cast piece the bearing fits to) depending on weather you had the bork and beck or diaphragm pressure plate. It sounds like you might have the short retainer and need the longer one.


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Originally Posted by Mike P

As I recall Chevrolet also used 2 different length throw out bearing holders (the cast piece the bearing fits to) depending on weather you had the bork and beck or diaphragm pressure plate. It sounds like you might have the short retainer and need the longer one.

Mike's got an excellent point, and I have no idea how your AX15 tranny compares to the GM for the transmission front bearing retainer/guide tube. I think the guy in the video pointed out how critical it is for the throwout bearing ID to match to the guide tube OD, and like Mike says, for the guide tube portion to be long enough.

Thanks ... I contact Novak they specialize in this and they believe my setup is too small. The cylinder slave I have isn’t big enough to push the fork far enough ... but also your point about the pivot ball may also be correct. It may be set wrong and not allowing the fork to move. It’s hard to get photos but I’ll try.

The AX15 has a GM adapter to work with thisbset up. I just can’t figure out why the fork is slipping into the bearing jamming it up. Now I have to take the whole system out and take it all apart ... sounds like a weekend job haha. But thanks for the tips I’ll let yous know.