Good thought 68Ironhead. If true, not every truck would have one. I’ll have to do some “under the hood” checks at the next car/truck show I attend.
1957 Chevy 3200Daily DriverPS, A/C, Tilt column, Rebuilt 350, Rebuilt TH350, Reupholstered Bench Seat, sound proof/insulated, LED headlights/taillights/backup lights/interior courtesy lights.
Follow in the DITY 
