Problem is most old sockets have problems too. Not just old senders. Means they can bite you in the long run.
Plugs are loose or rotted from rust are common issues. Fiero V6 OP sockets and senders get water, road salt, etc, thru engine vents.
Iffy connections can cause problems when OP sender is running the fuel pump.
splicing isn't hard. See my Cave, Oil Sensor
Use "water proof" crimps w/ heat-shrink & glue keeps out water.
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
The Ogre's Fiero Cave