Keep your flexplate from working itself loose with the BD Diamond Bite Shim kit. The forces the flexplate are put under are extreme and in high performance applications the flexplate can slip; even with correctly installed and torqued bolts! It only takes a small amount movement for the bolts to loosen and allow the flexplate to oscillate against the crankshaft causing costly and catastrophic damage to both parts. BD Diamond Bite Shims with a diamond embedded electroless nickel coating create a micro-bite between the flexplate surfaces giving a significant friction increase. This friction increase stops your flexplate from slipping, allowing it to handle the much higher torque loads expected from a diesel engine. Recommended for high output and heavy duty Cummins 1994-up 5.9L/6.7L applications.