67411sss Posted June 20, 2012 Report Share Posted June 20, 2012 I need a clean/rust free gas tank for my 78 620. I don't know if the early ones have the fuel return lines but thats what i need. Portland or the gorge preferable. Thanks Rory. Link to comment
BenJammin Posted June 29, 2012 Report Share Posted June 29, 2012 If the '78 has the frame mounted tank like the '79, a tank from an '83 720 should work, and it has the return line, plus another 1/2" vent line directly to the filler neck (the 720 doesn't have the small vent/evap tank of the 620 ). I point this out because the '83 tanks are available new on ebay for about $100. You just have to hack off the welded-in nuts on the front flange of the tank (because the frame mount already has them) and they should match right up. I'm basing this on the fact I did a swap on my '73 from a bed mounted tank to a frame mounted one. I used the frame mounts from a '79 and matched the '83 tank to them before I welded the mounts (all the bolt holes were a perfect match). Also, I had to notch out one of the bed supports for the tank to clear on my '73 because the '83 tank is either a little taller or the different mounts just hold it up higher... but I'm assuming the 78/79 beds already accommodate that (?) Link to comment
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