Harmonic Balancer: Pontiac V8 65-70's (GM) NOS NEWSUPER SUPER RARE NOS NEW IN THE GM BOX Harmonic balancer.. AS PER IMAGE. WOULD SUIT THE PURIST BUILDER ONLY.. plenty of normal HB's available way cheaper. These are brand new early GM Harmonic Balancer for 65 era & up.. if it matches yours.. thru to early 70's PONTIAC V8,note the three bolt mount positions for the pulley's. These are bound to be discontinued .. please enquire first with the part # PW12346 email us at pwdistribution@gmail. com