Felt doughnut on balancer

j par said
Do you frequently take your RPMs up to and sometimes over 7K?

Nope 55-6 at the most.

dibbons said
So what is the definitive application? Did Mopar just stop using it some where on the timeline? Aren't all the timing cover set-ups basically the same year to year?

Hard to say for sure, but I seem to remember them showing up in some kits decades ago.
For multiple brands to.
(Chevy, Ford, Chrysler)