Is this Muncie from your 68 Camaro? 18N305716 Check it out. http://cgi.ebay.com/ebaymotors/Muncie-4-speed-M20-M21-M22-case-3925660-NICE-1968-70_W0QQitemZ170324133378QQcmdZViewItemQQptZMotors_ Car_Truck_Parts_Accessories?hash=item170324133378&_trksid=p4506.c0.m245&_trkparms=72%3A1171%7C65%3A12%7C39%3A1%7C240%3A131 8