So I have a amc bell housing and a jeep t18. I have everything else figured out but I'm unsure of what throw out berring to use. Do I use the one that came with the trans. Or do I use the one from my jeep that matches my pressure plate. There not much different. The t18 berring is larger and taller by about 1/4 inch than the one from my pressure plate.

Any thoughts?

What tranny are you replacing and what jeep model did the T-18 come out of?

My T-18 has a borg/beck 3 finger style clutch, and I have the really short bearing assy. I think if you use a diaphram clutch, you might need the taller one.
Travis..

The trans that was in my jeep was a t176 the three speed. Also the style clutch doesn't just have three fingers there is a bunch of fingers. I would assume that would be the other style. The t18 came out of a 79 cj7 with a amc 304.

The clutch with a bunch of fingers is the diaphragm style. I think you need the taller bearing because the fingers typically don't stick out as far on those clutches. Since you say you had a 3 speed, I assume this is a CJ and you have the right flywheel already?
Travis..
EDIT. thinking about this deeper after re-reading you original post. If in fact you have a CJ and your clutch was working fine before, there is no reason to think it won't work right when set up as it was previously. The bell housings should be the same depth with the same fork arrangement, so what you had before should work. Assuming you had an operational Jeep to start with. I assume you are leaving your existing clutch/flywheel arrangement on the engine with no changes?

The trans that was in my jeep was a t176 the three speed.

A T176 is a four speed, so which is it?

EDIT. thinking about this deeper after re-reading you original post. If in fact you have a CJ and your clutch was working fine before, there is no reason to think it won't work right when set up as it was previously. The bell housings should be the same depth with the same fork arrangement, so what you had before should work. Assuming you had an operational Jeep to start with. I assume you are leaving your existing clutch/flywheel arrangement on the engine with no changes?

Depends on if it's a three speed (and which three speed since we've already been told wrong) or if it's a T176. If it is a T176 the clutch disc will be too large (1-1/8") for the T18 input shaft (1-1/16").

Yes I'm sorry about that. My old trans was a t150 not a t 176. So If that makes a difference. But I want to keep my clutch pressure plate and fly wheel. Unless it won't work. But like you said the bell housing is the same so I don't think that would matter. Thanks

Clutch parts for the '76-79 T150 are the same as clutch parts for a '76-79 T18. They both use the same 1-1/16" clutch disc, pressure plate, and throwout bearing.

Well I will have to a picture up for you because they are not the same. They only thing is that my clutch is a zoom clutch. I don't really know If that is what is making the difference.

Regardles of what yours has, the two combinations I listed left the factory with the same parts.

The fact is if your clutch parts worked with your T150 they will work with your T18. The input shaft is the same size on both and that's the only thing you need to be concerned with.

Don't make it any harder than that.

If it all works now, it should work later if all you are doing is bolting a different trans (with same input dimentions) to your existing bell.
Travis..

Yea I guess I'm over thinking it. Just wasn't sure about it. Didn't wanna have to pull it out again. Thanks for your help.

use the throw out bearing that came with your clutch kit, when i replaced my 304 with a good used one, i tried to use the diaphram type throw out bearing that came with the new to me 304(that was bolted to a t-150). my t-18 ( from a full size jeep cherokee sj) calls for is the borg beck type three finger clutch, but the bearing was shot, so i figured i would give the diaphram style bearing a try. yeah i found out the hard way that it doesnt work.