Who,
The factory location of the fuel sender ground is the bottom of the cab (outside of the cab) under a wire clip held on by a nut and bolt (the bottom of the cab originally may have had some red oxide primer if any coating at all). Since the cabs originally did not have a ground strap going to the cab, I am guessing that the cab mount bolts provided the cab ground. Fast forward 60 years, where we epoxy prime and thoroughly paint every part to prevent rust, we may be losing adequate cab grounding.
As far as "secrets" to putting in the gas gauge, it helps if you have extra elbows in your arms. smile
Carl


1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission