Moroso 63861 - Drive Mandrel Kit, SBC With Crank Triggger

Drive Mandrel Spacer Kit, SBC, Use with Moroso 63857 & 63859 Drive Mandrels, Comes with 1/4" Longer Crankshaft Bolt • For use with Moroso Nos. 63857 & 63859 drive mandrels • Maintains register of mandrel when using a 1/4" thick crank trigger • Comes with a 1/4" longer crankshaft bolt • Constructed out of stress-proof steel with a black oxide finish