The Stovebolt Site Forums The Parking Lot Big Bolts How to adapt to dual reservoir cylinder?

49TT, if you can post a couple of pictures of the firewall in the engine compartment, we might be able to see if any original vacuum plumbing is there. The check valve would have been mounted on the firewall as high above the engine as possible. Vacuum lines for the HydroVac were1/2 inch steel with rubber flex sections. The HydroVac on my truck is mounted on the left frame rail under the drivers seat/step.