1st post to the list :confused:

I searched, hopefully this is the right forum for my newbie question.
I have an sm420 that I ran with my 2.5L in a YJ, am now putting in a 350. I went back and got the bellhousing out of the same truck I got the 420 from. It's a 63 Chev or GMC. The bellhousing index hole is larger then the bearing retainer on the 420, I thought that can't be, must have had a 465 or something in it at one time. Well a couple of weeks ago while picking up an axle I found another 420 in an industrial rig of some sort, same larger bellhousing hole then the tranny bearing retainer.
Question is am I nuts? Can anyone else confirm what I saw, if you put the bellhousing against the tranny and push it up it seems to line up fine but I have heard clearances of .003" runout for lining all this stuff up to the crank?

Should I say fawk it and have a machine shop make up a ring to match the two, or has anyone else seen what I'm talking about?
I did do a search, and one guy is running it that way, but what I was wondering is if this in fact the way they came from the factory?

One other question :) I got the forged clutch arm and the little spring clip that holds it to the pivot ball is screwed up, can you get the clip or do you have to get a whole new arm?

Thanks!

David

a 420 uses standard car type bellhousing
break out the tape and measure retainer and the bellhousings

Thanks MJ , just wondering if anyone could verify what I seem to keep coming across. I prefer the steel (?) bellhousing to the car ones, had one of the aluminum ones crack on me before. Will go with what fits however.

David

you should still post some hard numbers for others to compare their experiences

Ok will do, probably tomorrow sometime.

David