ok, so first, thanks for the info.

the one i have now, which came with the truck, new in a box is a LUK 1042. the PP and disc are the same size as the old one, 9 1/4"

i can't tell you all the other ones i've tried but i do have2 other #s. PTQ K1872-01 and PTQ K1874-06. neither worked.
i can't tell you anything about the flywheel but if you tell me what would help, i can see it and count the teeth etc. pretty sure from memory it's held in place by 5 center bolts.
the problem started when i put the 1042 in and noticed when the bolts were more than hand tight but not near torque, that the PP didn't sit on the flywheel. but from what i'm hearing here, i just didn't make it tight enough? if thats the case, well i'm feelin kinda stupid...and also happy.

i started looking for a clutch that matched the old one because it looks so much differant than the new 1042. so please let me know, should i just reinstal the 1042, torque the PP down and that should be that?