Gm Ls Flywheel Locking Tool Flexplate Billet

keep your engine from rotating while installing your harmonic balancer with this Aeroflow performance flexplate / flywheel locking tool. This heavy-duty billet aluminium tool will hold your crankshaft in place while you properly torque down your harmonic balancer bolt. This is designed to work on engines mounted to an engine stand/cradle or an engine already installed in the vehicle. They are even slotted, so they can be used all gm ls engines in factory or conversion vehicles.