All,

I own a 1966 Chevy Stepside.

For a long time, I've noticed a metallic bumping noise coming from somewhere in my truck.

I finally chased it down to under my dash.
My wiper motor seems to be really loose and is "bouncing" off my stereo.

So, my (dumb) question is (for those of you who have been under there messing with the wiper motor):

How "loose" should the wiper motor be under there?

I'm pretty sure it bolts up to the firewall.
It currently has several inches of movement in both the up and down directions--think bouncing.

Thanks,

Tom
Carrollton, TX