It's not brain surgery, i have spent years professionally building parts for obsolete vehicles. I am going to remove the sending units from their frames and place the new ones on the old pickups. Before i do that, i will take both original frames and zip-tie them to cardboard, marking out the swing range and length of the original float arms. Then, (by means i will not determine until the parts arrive), I will mount the new senders and bend the arms to duplicate the original's function. If the resistance operating range is backwards to the original i will simply mount the new units upside down. Once I have succeeded, I will write it up and post it with photos. I intended to be workig on new copper lines right now, but Wife's in the hospital so priorities have changed. I should have this done, along with all new U-joints and brake job within a week.
I found a nice lady running a warehouse filled with Racor and other brand fuel separators in Modesto yesterday, PBT Distributors,
http://www.pbtdistributors.com/ Her web pages is unfinished, but I saw she has a lot of good stuff so call her if you need something. Good prices and parts to rebuild the old units. She mentioned she has a plunger and seal similar to what goes wrong with the original ford unit, but i do not have my original to see if it can be fixed. maybe one of you guys in the region can drop in? She also has a large roll of Aeroquip 5/16 line for the return lines, way better than the Goodyear and Gates junk in the parts stores. I got 6 feet of it for 2 bucks a foot. I paid 12 bucks a foot for the blue 3/8 Aeroquip line at GHX Rubber down the street.
Good luck with the wife's illness and hospital stay.
