by Quint » Mon May 07, 2012 10:06 pm
Dowels on the bottom line up with the mounting holes? Should, move them if they don't.
Get some 3-5mm alloy, cut out a strip ~25mm wide and bend it into a U with a tab to bolt to the car. Glue some conveyor belt rubber (heavy rubber) to the inside of the U, Bolt it on, done.