454 fuel sending unit
 

I have an original 1974 C20 with a 454 and dual tanks.

OK, looks like one sending unit has been changed, and the other one looks original. The crossover lines are gone and were replaced with hoses (mainly because I think the new sending unit is incorrect).

Sending unit should be 3/8 and 1/4 return, correct? Which then I need both crossover lines of the same size.

Thanks.