I am not sure on your master if it is the one that has the pivot rod built into it.I f it does you have to leave it in and run a new rod thru the old back to your new master and bracket you will have to make. Then make adjustments for travel lenght on the rod for the new master to work. Older GM 1/2 ton trucks have masters that work well--just make sure you get one for drum all around--if you switch to disc up front adjust accordingly. Master Power Brake has a large assortment of masters for all applications. Good Luck........52er

One should live as if you sold the family parrot to the town gossip....Will Rogers