Man,I wish I were closer to your route! sounds like you're going to be on parts of "Old Route 66" Trucks like yours were the Prime Movers,back in the "Glory Days"! Have a GREAT TRIP! b.T.W... I'm VERY interested in your dual diaphragm vacuum booster,coupled to a dual-reservoir M.C. Please keep us posted,and make sure you take plenty of pic's!!