Gauge question

Im getting a 12 v gas gauge. Do i need to change my sending unit in the tank

 

The original sending unit in your tank is 30 ohms full, zero ohms empty. As long as your new 12v gauge is compatible with those values it will work well.

 

Its a 240-33 Ohm Fuel Sender

 

Then you need a gauge to match. The stock gauge will read full all the time.

 

I just realized they are sending a gauge and a sending unit together my bad on this
thanks for the help though