Dave says: Caution: " I do not recommend using the 1955-62 passenger balancer since the pulley is larger and may turn the fan too fast, leading to cracking. (to identify this balancer, the pulley is 6 3/4" OD X 5/8" outside to outside edge).

USE:
1941-52 Harmonic balancer and water pump for ⅝" belt.

1953-54 Harmonic balancer* and water pump for ⅜" belt. "


I don't know if this address your S--- hitting the fan. smile

Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn