Quote:
Originally Posted by kipps
GM never equipped a truck with three tanks from the factory. The pickups got one or two of the side-saddle tanks, and the Blazers/Suburbans got the rear tanks. No pickup ever came with a rear tank.
Somebody obviously added the rear tank from a Blazer or Suburban at some point in the past. How did they plumb the fuel filler? Through the bed? Behind a tail-light?
If you intend to keep the rear tank, I'd suggest you pull measurements, and try to figure out which tank was used. There were two different sizes; 30-gallon and 40-gallon, IIRC. There shouldn't be anything fundamentally different about the sender between gas and diesel, as long as it has the correct size and number of ports. A diesel sender will need to accommodate a fuel return. Most gas sender units didn't bother with a return.
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Alrighty good to know.thanks for the tips.heres where they put the filler
(Sorry for the crummy pics.i have the truck close to the wall and was standing on the bumper)