X2 what he said, read this link, it may help:
http://www.forabodiesonly.com/mopar/archive/index.php/t-170748.html
"Bingo!! you need the 130 tooth flywheel! The 143 is a truck flywheel and if you try to use it the starter won't fit. 143 tooth is for a 11 inch clutch, you should be using a 10 1/2 ", 130 tooth setup with that bell."
