Hi Anthony
Couple of thoughts I'm not sure that they used the same engine mounts so I would check the distastes between the various engine mounting bolts front and rear on the engine and on the frame particularly from the front to the rear. Did your replacement engine come with the little ears on the sides of the bell housing? My parts books don't tell me if the car transmission bolt pattern is the same as the truck.
If you can not find a proper CMP bell housing, a left hand clutch housing can be converted to a right hand side (see
http://www.mapleleafup.net/forums/sh...ad.php?t=14363 down at response 11) not a difficult conversion I've done two and they have worked fine.
Was your truck missing the entire engine and transmission unit or was the engine just bad? There are lots of CMP engine and linkage bits so it might be worth looking for a bad CMP engine as a parts donor.
Any questions ask away, somebody in the MLU group has a suggestion.
Cheers Phil