I just purchased a 1951 Willys Pickup that s all original and my intention is to keep it that way. My only thought about a modification is regarding the brake system, I doubt that I will ever drive over 45 MPH but I would still like good breaking power. Do I want to install a power booster, or should I consider a disc break conversion, I am told both option are reversible, require no modification and are bolt-on projects. Any and all advise would be appreciated.