bigmikes50chevy, thanks but based on the picture that shows your rear spring shackle I believe you have a 3100 which has a significantly different frame spacing in the area where you have your tank.
However I am interested in your filler rounting as I plan to do something similar. Do you have any concerns with the filler being the widest part of the truck? I was thinking I may want to route mine further back to have the neck extension/cap inside the fender width profile.
