[Jeff1971]

I'm trying to add a return line to my 71 gmc in cab tank. It currently has one outlet tube. Looking at the 72 sending unit, it has a return already built in. Can I just put the 72 sending unit in the 71 tank and have it fit?

The whole reason for this is a possible Holley Sniper upgrade.

No vendor specs out the dimensions???

Thanks

Jeff