Can you modify an EEC fuel tank to work in an older truck? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

troykaz · 11-22-2009, 11:48 AM

Hi all, I have a 71 3/4 ton GMC and I had to get rid of the fuel tank and sending unit. I picked up a good tank and sending unit out of a 72 chevy someone was parting out. Only problem is the new tank is an EEC tank with extra connections and the sending unit has 2 hoses instead of one. Can I cap off the extra nipples and use it this way or do I have to install a charcol canister and run the lines. Thanks in advance for any help.

**Palf70Step** · 11-22-2009, 01:52 PM

You can just plug the holes on the tank you don't need. No problems with the switch. I have a 72, ECC tank I used in my truck.

troykaz · 11-22-2009, 04:58 PM

How would you plug off the extra fittings on the tank, would you use rubber plugs or something more permanent, like epoxy?

**Palf70Step** · 11-22-2009, 06:28 PM

I am using rubber (fuel safe) plugs.

11-22-2009, 11:48 AM	#1
troykaz Registered User Join Date: Jun 2009 Location: Walla Walla, WA Posts: 4	Can you modify an EEC fuel tank to work in an older truck? Hi all, I have a 71 3/4 ton GMC and I had to get rid of the fuel tank and sending unit. I picked up a good tank and sending unit out of a 72 chevy someone was parting out. Only problem is the new tank is an EEC tank with extra connections and the sending unit has 2 hoses instead of one. Can I cap off the extra nipples and use it this way or do I have to install a charcol canister and run the lines. Thanks in advance for any help.

11-22-2009, 01:52 PM	#2
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,083	Re: Can you modify an EEC fuel tank to work in an older truck? You can just plug the holes on the tank you don't need. No problems with the switch. I have a 72, ECC tank I used in my truck. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

11-22-2009, 04:58 PM	#3
troykaz Registered User Join Date: Jun 2009 Location: Walla Walla, WA Posts: 4	Re: Can you modify an EEC fuel tank to work in an older truck? How would you plug off the extra fittings on the tank, would you use rubber plugs or something more permanent, like epoxy?

11-22-2009, 06:28 PM	#4
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,083	Re: Can you modify an EEC fuel tank to work in an older truck? I am using rubber (fuel safe) plugs. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!



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