Posted by Don Williams on Saturday, December 02, 2000 at 08:22:56:
In Reply to: 1978 PW Aux Gas Switch posted by Anthony P. 78' on Friday, December 01, 2000 at 21:16:11:
By '78 the fuel tanks had been moved to under the bed on the 2WD trucks. I had a '75 2WD parts truck with the fuel tank under the bed. I would think the 4WD was the same. That makes me think your primary tank is under the bed.