As the crankshaft flexes, the balancer absorbs incredible amounts of energy. ARP balancer bolt kits will ensure that your balancer is locked into position. They feature a 12-point head that accepts a deep socket to eliminate the fear of stripping the head.Bolt, Crank, 12-Point, 2.20 in. Length, Mopar, Big Block, V10, EachARP started applying technology to race fastener design and manufacturing in 1968. Today's critical diesel fasteners - head studs and bolts, main studs and bolts, and driveline - have been designed stronger than ever before to handle the extreme loads. As a results, installation pre-loads - the amount the fastener is stretched during installation - are very high.Specifications:Socket Size(s): 1-1/16 12ptUHL: 2.200"Thread Size: 3/4-16washer included