Malibu wagon sending unit?

Reddzedd

Not-quite-so-new-guy
Jan 14, 2020
21
3
Hey guys, just ordered a wagon fuel tank and, even though I haven't seen it yet, I can imagine the sending unit itself is also pretty crusty. It would also help if I had a working fuel gauge too...
From what I can gather, the wagon's fuel tank is deeper than the sedan/coupe/el camino variants. After some searching, I'm not finding any leads on where I could buy one of these. I've seen a few mentions of astrovan TBI units, but I'm not looking at in-tank pumps, as I'm sticking with a carburetor.
Does anyone still make these? Or is there an aftermarket alternative that doesn't require too much modification?
 

Ribbedroof

Comic Book Super Hero
Supporting Member
Jan 4, 2009
4,533
113
Wellston, OK
IMO, if you don't want to use the Astro unit, buy a coupe/sedan sending unit and extend the pickup tube and float arm.

NOS senders, when they turn up, bring stupid money. Nothing special about them aside from the depth difference.
 
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Reddzedd

Not-quite-so-new-guy
Thread starter
Jan 14, 2020
21
3
IMO, if you don't want to use the Astro unit, buy a coupe/sedan sending unit and extend the pickup tube and float arm.

NOS senders, when they turn up, bring stupid money. Nothing special about them aside from the depth difference.
Is there any extra modification required for the Astro sending unit?
 

ssn696

Living in the Past
Jul 19, 2009
5,431
113
Permanent Temporary
To orient the fuel lines the right way, you have to remove the sender alignment tang or cut a new slit in the tank retainer ring.

You'll also need to cap the vent pipe or add a fitting to your fuel filler pipe.

 

Reddzedd

Not-quite-so-new-guy
Thread starter
Jan 14, 2020
21
3
Since I'm intending to use this in a carbureted engine, do I still have to do anything with the fuel pump in the sending unit?
 

ssn696

Living in the Past
Jul 19, 2009
5,431
113
Permanent Temporary
Since I'm intending to use this in a carbureted engine, do I still have to do anything with the fuel pump in the sending unit?
Stop here. This solution was based on my wrong assumption that you are converting to EFI and needed the pump in the tank.

If you are staying carbureted, start with an 80s square-body pickup or perhaps small-tank Suburban sender. You will have to modify it so that the pickup 'sock' sits on the bottom of the tank.
 

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