There is a T in your brake line in your front right wheel well one goes to the front brake on right side the other goes to lspv you diconnect the lspv side and plug with bleeder off lspv. Then diconnect all brake lines going to lspv ask someone to hit brakes which ever one squirts is the rear hooked up to the mc. If you hook that one straight up to brake line your brakes will be 50% front 50% rear which is bad but works. Then you can remove the lspv, but I would recomend putting the porportioning valve off first gen toyota it is mounted under the mc it will put your brakes back to stock configuration.