Hey all, dumb question....I'm trying to get my gas tank out and when I cranked down on the nuts under the truck they just keep spinning. I can't find a way to hold the bolt to get the nut off...is there a trick to this? I can't access the bolt head because it's hidden under the tank....
You are trying to remove the cab mounts.
You have to remove the bolts above the tank first, disconnect the fuel line at the tank, then remove the filler tube. The tank will lift out of the brackets that are held in by the cab mount bolts.
Did you take the top three or four bolts out right under the rear window? Once these are removed, the tank will lift right out of those brakets. (Once you remove the other items i mentioned earlier.)
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When I put my tank back in, I put som cork gasket material between the bracket and the floor and some rubber strips between the tank and the brackets to keep vibrations from resonating the tank. It made a huge difference.