You'll need to get under the truck and see which lever is hooked to the PTO and which goes to the pump valve. If everything is working as it should you may wish to put labels on them or on the dash to guide you. It is doubtful that the valve has any return to neutral feature. Most of them had spring detents on the spool which kept them in the position in which they were placed.


1953 Chevy 5-window 3100
In the Stovebolt Gallery
More pix on Picturetrail

Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain