I have a new gas tank and i have questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hoopty-cuztom · 08-24-2011, 08:32 PM

ive been trying to get this truck to where i can just drive it for months now.
i do not have a original gas tank to look at, ive been using a 5 gal gas can in the truck to move it around,

i ordered a new poly tank from gmcpauls its a MTS tank, i have been searching to see what i can find about installing it im not having much luck,
what kinda problems am i gonna have?
and it has 3 brass fittings am i suppose to have 3 hoses for them?
and the small hose that comes from the filler neck where is it suppose to go?
my exhaust is gonna be very close to the tank. it says on the tank the exhaust can not be within 3 inches from the tank so i guess im gonna have to cut it behind the mufflers and turn it out or down

i thought this was gonna be the easy part,lol

thanks for any help

Burt4x4 · 08-25-2011, 10:29 AM

The brass is for the vent hoses...I don't have any pics too share. Try and search this site we have talked about this before so it should be here somewere...
I installed a poly tank long time ago and the only mod I had to do was the filler neck on the poly tank is much shorter than the steel one. So you will need a longer fill hose.
Good Luck

hoopty-cuztom · 08-28-2011, 08:23 PM

well i just got the tank in there today. it was pretty easy i dont have a body lift and i had no problems with the filler neck hose, i just went and bought a 1-3/8 filler neck hose i guess it was about 3ft long worked just fine i had to cut off the extra. i was worried about it because everything i was reading about it said how hard it was to get the straps to work and the filler neck hose but there was nothing to it.

ntd · 09-01-2011, 02:59 PM

another idea on a gas tank for the blazers, I did this to a '71 I used to have.
I removed the old original tank and got a 31 gallon tank from the junk yard.
I welded a piece of angle across the frame after measuring straps and all that and then put the bigger tank up in there, the rear strap mounts work and then just drilled holes in the angle up front. fits nice and it gives you 31 gallon capacity.
the only problem was the filler neck is on the other side, so I had a friend move the filler neck to the drivers side of the tank, the tank was empty and rinsed but we pumped Co2 into the tank while welding to stay away from a fire....lol

08-24-2011, 08:32 PM	#1
hoopty-cuztom Registered User Join Date: Aug 2010 Location: HIGH POINT,NC Posts: 30	I have a new gas tank and i have questions ive been trying to get this truck to where i can just drive it for months now. i do not have a original gas tank to look at, ive been using a 5 gal gas can in the truck to move it around, i ordered a new poly tank from gmcpauls its a MTS tank, i have been searching to see what i can find about installing it im not having much luck, what kinda problems am i gonna have? and it has 3 brass fittings am i suppose to have 3 hoses for them? and the small hose that comes from the filler neck where is it suppose to go? my exhaust is gonna be very close to the tank. it says on the tank the exhaust can not be within 3 inches from the tank so i guess im gonna have to cut it behind the mufflers and turn it out or down i thought this was gonna be the easy part,lol thanks for any help

08-25-2011, 10:29 AM	#2
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	Re: I have a new gas tank and i have questions The brass is for the vent hoses...I don't have any pics too share. Try and search this site we have talked about this before so it should be here somewere... I installed a poly tank long time ago and the only mod I had to do was the filler neck on the poly tank is much shorter than the steel one. So you will need a longer fill hose. Good Luck __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

08-28-2011, 08:23 PM	#3
hoopty-cuztom Registered User Join Date: Aug 2010 Location: HIGH POINT,NC Posts: 30	Re: I have a new gas tank and i have questions well i just got the tank in there today. it was pretty easy i dont have a body lift and i had no problems with the filler neck hose, i just went and bought a 1-3/8 filler neck hose i guess it was about 3ft long worked just fine i had to cut off the extra. i was worried about it because everything i was reading about it said how hard it was to get the straps to work and the filler neck hose but there was nothing to it.

09-01-2011, 02:59 PM	#4
ntd Registered User Join Date: Sep 2011 Location: san diego, ca. Posts: 51	Re: I have a new gas tank and i have questions another idea on a gas tank for the blazers, I did this to a '71 I used to have. I removed the old original tank and got a 31 gallon tank from the junk yard. I welded a piece of angle across the frame after measuring straps and all that and then put the bigger tank up in there, the rear strap mounts work and then just drilled holes in the angle up front. fits nice and it gives you 31 gallon capacity. the only problem was the filler neck is on the other side, so I had a friend move the filler neck to the drivers side of the tank, the tank was empty and rinsed but we pumped Co2 into the tank while welding to stay away from a fire....lol



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