im a bit confused- my 70 roadrunner is coded b51 power brakes- when i bought car it had drums on front and was missing master cylinder and booster-My question is when i bought replacement booster and master the firewall mounting plate has 2 studs where upper booster studs would go-what gives- do i knock out plate studs to mount or is this b51 on tag a mis stamp.Help!

Sounds like someone converted it to manual brakes at one time. The firewall backing plate will have to be removed and replaced. The backing plate is different for manual and power brakes.


here is a power brake plate:

http://cgi.ebay.com/ebaymotors/Mopar-roa...sQ5fAccessories