I replaced my fuel sender with a VDO brand 280 mm unit from California Imports Limited www.cip1.com. Cost was $59
Installation was quite straight-forward. Be careful putting the steel screws back into the aluminum sheet metal - don't want to strip them.
The gauge now reads empty at about 180-190 miles. Much better than the 100 miles before, but there is still a gallon or two left. I am happy with this result, but if I would do it again, I would try a 290 mm unit.
