When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Not so fast, the rear has always been the Aux on every one I have owned, (5) Maybe there are different ones out there. Your fuel tank selector switch should say "Rear" (up position) and "front" (down position). In 1978 models the swith is labeled "Aux"-up and "Main"-down. Anyone else??? -Dale
I've got a 78, on my way home from picking it up, I ran out of gas (which was frightening cuz I just filled both tanks up) I flipped the switch, but evidentally it didn't matter. we stopped for gas and it looked like the rear was main, so I poured in my couple of gallons and couldnt start it up. we went back and this time filled the middle tank. to which it fired right up...the moral of the story is ....??? I dunno, it looks as though the rear would've been the main, but I think somebody hillbilly fixed it
I've been told that the front tank is the main and the rear is the aux. On my dash the switch in the down position is the main tank and the up is the aux.
Hi I can only speak for myself,but I have 2 1978 4wd supercabs and I checked them both before writing this.On both the rear tanks are marked AUX and switch is in the up position.Hope this helps