My 17 year old son and I are swapping a 440 into the ol' '75 D100 ("Banana Truck"). This project is for him.



We finished the steering/suspension rebuild with van LCA's...



Going to drop the motor and tranny in after painting the firewall Viper yellow...



I know the tall valve covers won't clear the power brake booster so in the interest of keeping things simple (and cheaper) going to swap to manual brakes. I already have a truck manual MC on the shelf. I'm guessing the factory used a studded reinforcing/mounting plate of some kind? Can anyone shed additional light on this?