Are there not any old trucks in your local junkyards? Check to see if they have a Hollander Interchange manual. That will tell you what will bolt in. Your master cylinder will work with or without a power booster. As long as you're making changes it would be wise to step up to a dual chamber master cylinder from a drum brake truck 1967 or later.

Devin


If you can't hose it out it ain't a truck

55 3100
63 Corvair Monza
64 El Camino
72 240Z
01 Suburban