It was a Fire Dept truck, 1947. It had a big water tank on it and I suppose a pump. It was all gone when I got the truck.

I'm still not sure how it worked. What do you mean by "often used a vacuum assist to pull the truck out of gear from a remote location."

1947 M15 Studebaker 454 4x4
1949 Chevy COE
In the Stovebolt Gallery
More pix of the COE
1950 Harley FL
1958 GMC LCF 455 3x2bbl
1961 Chevy C60 Tilt Cab 327
1966 Chevy C60 Tilt Cab 496
1961 Chevy K10 sb 292
1974 Harley FXE
1979 Chevy K10 sb
2007 Harley Streetglide


I'm not that good but I'm slow