Just my 2 cents. I recently had to rebuild my engine compartment after a nosedive. The original beams had split and were useless. As I had a firewall mount available I decided to use it. I still wanted to maintain at least some of the original integrity so I cut and sanded until the firewall mount met level with the beams. So far it has worked like a charm (guess we'll see what happens to the firewall in the next meeting with destiny).