Can you dual-feed the direct clutch in a th350c? I seem to recall hearing that the converter wont lock when you dual-feed. Any truth in that? This trans is going in my dads 81 GMC truck 4X4 ( was deisel powered,now has a 455 Olds !) I dont want to have to remove the trans and transfer case later to install the center seal if this mod wont work. Any other high performance tech tips for a 350C? I love this forum, I learn somthing new almost every day! Thanks!