Coolant temp gauge problem
I don't think sender grounding is a big deal, but does not hurt to jumper the sender hex to ground. Also be careful not to overtighten, they can be damaged
Try to double check the sender part numbers and see what else they fit. If they fit B/C/A bodies, etc, they are the same resistance range. With the engine fully warmed, that resistance reading sounds high, which would read cold "Standard" readings are:
I don't think sender grounding is a big deal, but does not hurt to jumper the sender hex to ground. Also be careful not to overtighten, they can be damaged
Try to double check the sender part numbers and see what else they fit. If they fit B/C/A bodies, etc, they are the same resistance range. With the engine fully warmed, that resistance reading sounds high, which would read cold "Standard" readings are: