This is an updated guide to the original one I posted. I wasn’t a fan of how loose the new fill neck was in the original filler extension, so I removed it.
Usually you need to remove the valve cover to access the lock tab, but if you use a small pick, you can lift it just enough to unlock it and replace it with the new one!
#diy #suburbanredneckgarage #mechanic #chevrolet #gmc
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