I think the singles acting were standerd
the only Double acting I have seen were on the
1 1/2 ton army truck that we had I could be wrong but this is just what I have seen


Luke Dahlin

1946 Chevy 2 ton
1966 Chevy 2 ton
1969 Chevy 3/4 ton 4wd
http://www.stovebolt.com/gallery/dahlin_luke_1969.html]1969 Chevy 3/4 ton 4x4