Installing a rear tank sending unit question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

oldgmc · 03-09-2009, 03:58 PM

I will be installing a rear tank (75 Blazer or similar) In my 79 K35. I have a great link someone here sorry I forget who sent it. Question is my original set up had 2 - 20 gal side tanks had a 3 outlet sender and the vent was on the tank next to the filler. Do I need a 3 or 4 outlet sending unit with new tank. The truck being a one ton does not need emissions like a canister ,egr or cats. From what I can tell the blazer tank has the vent line on the sending unit.
The sending unit is expensive so I want to get the correct one
Thanks

03-09-2009, 03:58 PM	#1
oldgmc Registered User Join Date: Oct 2006 Location: nj Posts: 54	Installing a rear tank sending unit question I will be installing a rear tank (75 Blazer or similar) In my 79 K35. I have a great link someone here sorry I forget who sent it. Question is my original set up had 2 - 20 gal side tanks had a 3 outlet sender and the vent was on the tank next to the filler. Do I need a 3 or 4 outlet sending unit with new tank. The truck being a one ton does not need emissions like a canister ,egr or cats. From what I can tell the blazer tank has the vent line on the sending unit. The sending unit is expensive so I want to get the correct one Thanks Last edited by oldgmc; 03-09-2009 at 03:58 PM.

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