I have a 1962 Stepside 6 cyl/3 on the tree pickup that is very original with only 70K Central Oregon miles on it. We've rebuilt, overhauled or replaced everything to make it run very nicely. My one problem is the temperature sending unit is missing. My cylinder head is drilled and tapped for a 9/16" thread sending unit; the only replacement units I've been able to locate are 3/4" thread. My wiring harness has the "L" shaped two prong plug. Anybody know where I can find the correct sending unit?

'62 Chevy C10 Short Bed Step Side, 235 Six with Offy intake, 2 carter/weber 2bbls and Fenton headers. B-W T5 5 speed trans, with stock rear end.