Sometime during the last year I read an article on the design and function of the harmonic balancer. It had original design test data showing crankshaft distortions with and without the damper. The difference was very dramatic.

1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed

My Chevy Master 4 Door is on the Road!