Karl,
Possibly.

However, I never forced the drums off.
Maybe the PO did.

I will say this---The pedal always pulsed a little, even ater I had
changed everything the first time.

Right now, all is well, and time will tell if the backing plates are
cooked.

Boy, will I be hostile, if this in  fact, is the root of this problem.

These Vans are most certainly, the Frankenstein Monsters !!

Later,

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Terry 85 GL