Both fuel gauges

[kodalee]

I have a 85 k10 and both fuel gauges get pinned about full only when they feel like. What can i do to fix this?

[bake74]

     I do not believe there were ever 2 fuel gauges stock.  You are saying 1 one for the right tank and 1 for the left tank.  I would start with how they are wired in.

     There is this write up by Rich which is very informative.
http://forum.73-87chevytrucks.com/smforum/index.php?topic=27238.msg226606#msg226606