Hello Scat Pack,
Just as a word of caution.
Some aftermarket sending units don't accurately tell your gauge the correct level of fuel in the tank.
Does your old one work correctly?
Is so when you get the new one you can temporally wire it up with the tank still out (plug it in and Ground it). and see if it works from empty to full.
When i replaced mine (Aftermarket) i found that out of the box the OHM readings were way off from what the factory recommends.
I wound up buying three until i found one with 10 OHM at empty and 73 OHM full.
Knowing that aftermarket units are not would progressively so that they will read correctly i decided to start with a empty tank and 5 gallons at a time and watch the gauge. I did this until the tank was full so I know what is really in the tank vs what the gauge says.
If yours is a OEM and still works i would go with it.
Change the gasket !!!
There are plenty of posts on here that address tank senders.
Hope this helps.
happy Mopar :)
Arron
