No one sells these dang things! Thought there'd be one in the box.
Anyway, do you HAVE to have it? What was it for? Just a bumper pad?
I mangled my 18 year old one a bit. (Here's your chance to tell me I
goofed) So, in order to be done with the job, I smeared a light coat
of Permatex blue RTV on the firewall where the gasket was and then
pieced/stuck the old gasket (only 2 pieces) back on over the RTV and
installed the booster. Sound good? Just curious.