Which fuel sending unit?

[bob8619]

Can you use a 2 or 3 port fuel sending unit to replace a 1 port and just put rubber caps on the unused ports or is that a bad idea? Are they engine specific or just advancements in technology that they put into later models?

[geezer#99]

Are you talking fuel tank sending unit or are you talking fuel pump?

[bob8619]

Originally Posted by geezer#99

Are you talking fuel tank sending unit or are you talking fuel pump?

Sorry, the fuel tank sending unit. The auto parts store carries the 2 or 3 port (for lack of a better word) but its saying it won't fit my vehicle since apparently the 68 used the one port , as in just the fuel line to the carb, no return or vent.


Mines been tampered with

[LockDoc]

Originally Posted by bob8619

Sorry, the fuel tank sending unit. The auto parts store carries the 2 or 3 port (for lack of a better word) but its saying it won't fit my vehicle since apparently the 68 used the one port , as in just the fuel line to the carb, no return or vent.


Mines been tampered with Attachment 1745971

It looks like it has been tampered with....

As long as the fitting for the fuel line connection is the same it will work fine. Just cap off the vent and return outlets and run a vented gas cap. Make sure the replacement has the filter sock on the end of the pickup tube. I don't know what that monstrosity is on the end of yours. Be sure and check the capped off outlets once in a while to make sure the caps haven't deteriorated......

LockDoc

[geezer#99]

So does it physically not fit (larger or smaller) or just not the same.
You might need to rebuild yours.

[71CHEVYSHORTBED402]

Personally, I'd hold off for the right one. Single line is available, for a 71 tank anyway. Seems they'd mount the same on 67-72 cab tanks, but can't swear to it. I got one through Classic Heartbeat.