If you don't want to fabricate a new set of pedals or rework the existing ones then one place to check is RB Obsolete. They have a pretty extensive line of chassis related products for trucks of your vintage including dual pedal assemblies that mount in the stock location. Other resto and street rod suppliers have them too so it will pay to check around both for price and variety. Be advised that almost all of the kits offered are for a disc/drum or disc/disc application and a hydraulic clutch. A few are available to run mechanical clutch linkage.
Mike
