Fuel pump help

[jobofly]

So I'm replacing my electric fuel pump with a mechanical. The problem is that I don't have the original fuel pump to get a part number. When I look online I find 4 different possibilities for a new fuel pump. Any advice on how I can find the right part?

thanks

 

[Summer Fun II]

Why are you changing over ?

 

[jobofly]

i hate the electric pump, it makes a thumping noise and i dont feel safe with it.