Blazer tank question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

aitch · 02-14-2005, 06:23 PM

I'm wanting to install a Blazer tank in my 69 GMC LWB. I found one but it's listed as for a diesel.
Would there be any tank difference between gas and diesel?
Will all Blazer tanks fit these 67-72 trucks?

Thanks,
aitch

aitch · 02-15-2005, 06:49 AM

Maybe I should have asked this on the Blazer side. I assumed that several of the members had installed Blazer tanks.
Any thoughts on whether a deisel tank would be different?

Joe67 · 02-15-2005, 08:19 AM

Did GM even offer a diesel on the 67-72 trucks

Many people here have swapped blazer style tanks into their pickups with great success

72402 · 02-15-2005, 10:04 AM

If it's for a blazer with a diesel, it would have to be from the mid 80's. You might make it work, but it's not a very good fit.

aitch · 02-15-2005, 10:45 AM

It's listed as 26 x 26 x 9 and 27 gal.
Year not listed.

Low69CST · 02-15-2005, 01:36 PM

Thats not a 67-72 tank. If you go to most any parts dealer they will have a steel tank for about 250? They are 21 Gallons. Here's a pic of mine.

Joe67 · 02-15-2005, 02:18 PM

Quote:

Originally Posted by Low69CST

Thats not a 67-72 tank. If you go to most any parts dealer they will have a steel tank for about 250? They are 21 Gallons. Here's a pic of mine.

Nice job on that tank install. You have me thinking about an external Fuel Pump/Filter now

Mudder · 02-15-2005, 01:48 PM

I bought a steel replacement tank for a 86 (31 gallon) for around 100 bucks from Raybucks. They have the sending units and straps for mounting.

ChevyDude · 02-15-2005, 02:09 PM

Mudder, did the 31 gallon Raybucks tank fit just like the 21 gal $250.00 model one???

**CPNE** · 02-15-2005, 02:18 PM

Quote:

Originally Posted by ChevyDude

Mudder, did the 31 gallon Raybucks tank fit just like the 21 gal $250.00 model one???

What Mudder failed to indicate is that his 67 is on a 73-up frame. So that 31 gallon tank is for a later model Blazer and the price can't be compared to the 21 gallon 69-72 Blazer model.

Correct me if I'm wrong but that's what I think

**Daubs** · 02-15-2005, 02:13 PM

Couple of question for you on the tank install

1. Where do you mount your spare? In the bed?
2. Where do you route the fill neck? Inside the wheel well, or cut a new door in side of bed?

Mudder · 02-15-2005, 03:07 PM

CPNE is correct (again) (Rolleyes) LOL. I think the 77 chassis is wider than a 67-72 frame. I do believe that raybucks has the metal replacement tanks for the 72 Blazers (21 gallon). I wish someone with the books could see what the width differences are in the 2 frames.

ChevyDude · 02-15-2005, 03:12 PM

Oh crap

...nice going Mudder

Yea, that 31 gal. tank's gonna fit us guys with 67-72 trucks...huh...LOL I"m kidding so don't get too upset. Hey...Guys support the board vendors and get your blazer 21 gal tank that "WILL" fit a 67-72 frame from one of the supporting vendors,,,,JMHO.

I'll buy mine from Les at GMC Pauls.

Mudder · 02-15-2005, 03:25 PM

LOL I wasnt telling you to buy a 31 gallon tank I was telling you what I paid for one.

I really believe most of the size difference in a 21 and a 31 gallon is depth. Having a 31 gallon is nice.

454_72_4X4 · 02-15-2005, 03:37 PM

How about a 73+ surburban tank in a 72 lwb frame? I've been thinking about doing this for quite a while but, as usual

, I haven't found one of those "roundtoits"!
I've got the tank, with the complete rear section of the burb frame. I'll measure it and post it here later.
Anybody know what the 72 frame width is?
I'd measure mine but it sitting in a swamp right now. I'll probably get stuck as soon as I try to move it unless it freezes!

Mudder · 02-15-2005, 03:47 PM

Some good measurments on the two frames would be great. It would answer some questions.

aitch · 02-15-2005, 07:43 PM

Quote:

Originally Posted by Mudder67

Some good measurments on the two frames would be great. It would answer some questions.

Mudder makes a great point.
Also, if someone had measurements on the early Blazer tanks that would be helpful.
aitch

ChevyDude · 02-15-2005, 03:57 PM

Does Tree know you are sporting a 31 gal. tank....that girl maybe on the way to Owensville, if she knew that,,,,, Ya know size matters!!! LMFAO!!!!

JerseyGirl · 02-15-2005, 05:40 PM

Quote:

Originally Posted by ChevyDude

Does Tree know you are sporting a 31 gal. tank....that girl maybe on the way to Owensville, if she knew that,,,,, Ya know size matters!!! LMFAO!!!!

WTF? How did I get involved in this???

I hate my gas tank being behind me when I drive...drives me nuts!

ChevyDude · 02-15-2005, 05:46 PM

You are involved....and I am really laughing my A$$ off...couldn't help it Tree...guess that's my weird sense of humor.....I'm still laughing girl!!!

Well then......Move it!!! Both my trucks have had the tank relocated!

JerseyGirl · 02-15-2005, 06:01 PM

Quote:

Originally Posted by ChevyDude

You are involved....and I am really laughing my A$$ off...couldn't help it Tree...guess that's my weird sense of humor.....I'm still laughing girl!!!

Well then......Move it!!! Both my trucks have had the tank relocated!

Freak!

ChevyDude · 02-15-2005, 06:11 PM

Still laughing....and

maybe I need a beer,,,Hey can you get me a beer hun? :nut: ya know they saying laughing is good for you...but that last outburst nearly killed me,,,,LOL!

67ChevyC10Stepside · 02-15-2005, 07:52 PM

a thing i have a question about is.....does the flange of the blazer tank rest inside the frame rails or underneath? the only way i could see it fitting is underneath but like that i would think if a strap would let go things could get interesting when it started skidding on the ground sparking.

aitch · 02-15-2005, 08:17 PM

I've got a LWB and it measures 27 3/8 between frame rails.
aitch

454_72_4X4 · 02-15-2005, 08:40 PM

Here's the 'burb frame section and tank I have;

Fuel fill on the left side, correct? (Been a loonng time since I cut this out!).

If it's left side fill then it measures 27-3/8 in. from the inside edge of the frame c channel to the inside edge of the opposite side. That's behind the tank.
In front of the tank it measures 27-5/8 in.

Top view;

Can anybody tell me the capacity on this tank? Guesses maybe?

02-14-2005, 06:23 PM	#1
aitch Senior Member Join Date: Sep 2004 Location: N.W. Arkansas Posts: 456	Blazer tank question I'm wanting to install a Blazer tank in my 69 GMC LWB. I found one but it's listed as for a diesel. Would there be any tank difference between gas and diesel? Will all Blazer tanks fit these 67-72 trucks? Thanks, aitch

02-15-2005, 08:19 AM	#3
Joe67 67 is sold Join Date: Apr 2001 Location: Troy, Michigan Posts: 6,733	Did GM even offer a diesel on the 67-72 trucks Many people here have swapped blazer style tanks into their pickups with great success __________________ Joe - Formerly 67c10step ------------------------------- 1967 Chevy Stepside - ECE 4/6, fuelcell, 5lug - SOLD gr8lakes - My ebay auctions Click here to order forum apparel :: Click here to become a subscribing member

02-15-2005, 10:04 AM	#4
72402 Registered User Join Date: Nov 2004 Location: Cameron, Oklahoma Posts: 199	Blazer tank If it's for a blazer with a diesel, it would have to be from the mid 80's. You might make it work, but it's not a very good fit.

02-15-2005, 01:36 PM	#6
Low69CST Registered User Join Date: May 2000 Location: Frankfort, Kentucky, USA Posts: 2,163	Thats not a 67-72 tank. If you go to most any parts dealer they will have a steel tank for about 250? They are 21 Gallons. Here's a pic of mine. Attached Images __________________ '69 CST Short fleetside Lowered, 400 small block, 700R4, 4 wheel disc brakes, front sway bar & rear camaro sway bar (in progress) '87 V10 4x4 Short Fleetside Quad Suspension and Dual Tanks

02-15-2005, 02:09 PM	#9
ChevyDude Senior Member Join Date: Jun 2003 Location: Westminster, CO Posts: 3,071	Mudder, did the 31 gallon Raybucks tank fit just like the 21 gal $250.00 model one??? __________________ Alex 1971 Lil' Red 350 SBC 700R4

02-15-2005, 06:49 AM	#2
aitch Senior Member Join Date: Sep 2004 Location: N.W. Arkansas Posts: 456	Maybe I should have asked this on the Blazer side. I assumed that several of the members had installed Blazer tanks. Any thoughts on whether a deisel tank would be different?

02-15-2005, 10:45 AM	#5
aitch Senior Member Join Date: Sep 2004 Location: N.W. Arkansas Posts: 456	It's listed as 26 x 26 x 9 and 27 gal. Year not listed.

02-15-2005, 01:48 PM	#8
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	I bought a steel replacement tank for a 86 (31 gallon) for around 100 bucks from Raybucks. They have the sending units and straps for mounting.

02-15-2005, 02:13 PM	#11
Daubs Registered User Join Date: Jan 2005 Location: Eastern Nebraska Posts: 613	Couple of question for you on the tank install 1. Where do you mount your spare? In the bed? 2. Where do you route the fill neck? Inside the wheel well, or cut a new door in side of bed? __________________ '72 Chevy K-20 Crate 350, SM465, 4.10's

02-15-2005, 03:07 PM	#12
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	CPNE is correct (again) (Rolleyes) LOL. I think the 77 chassis is wider than a 67-72 frame. I do believe that raybucks has the metal replacement tanks for the 72 Blazers (21 gallon). I wish someone with the books could see what the width differences are in the 2 frames.

02-15-2005, 03:12 PM	#13
ChevyDude Senior Member Join Date: Jun 2003 Location: Westminster, CO Posts: 3,071	Oh crap ...nice going Mudder Yea, that 31 gal. tank's gonna fit us guys with 67-72 trucks...huh...LOL I"m kidding so don't get too upset. Hey...Guys support the board vendors and get your blazer 21 gal tank that "WILL" fit a 67-72 frame from one of the supporting vendors,,,,JMHO. I'll buy mine from Les at GMC Pauls. __________________ Alex 1971 Lil' Red 350 SBC 700R4

02-15-2005, 03:25 PM	#14
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	LOL I wasnt telling you to buy a 31 gallon tank I was telling you what I paid for one. I really believe most of the size difference in a 21 and a 31 gallon is depth. Having a 31 gallon is nice.

02-15-2005, 03:37 PM	#15
454_72_4X4 Registered User Join Date: Apr 2004 Location: N.E. MO Posts: 1,749	How about a 73+ surburban tank in a 72 lwb frame? I've been thinking about doing this for quite a while but, as usual , I haven't found one of those "roundtoits"! I've got the tank, with the complete rear section of the burb frame. I'll measure it and post it here later. Anybody know what the 72 frame width is? I'd measure mine but it sitting in a swamp right now. I'll probably get stuck as soon as I try to move it unless it freezes! __________________ 72 C20 4X4 454 4 speed 89 Trans Am (was) 305 TPI 700r4 93 C1500 2wd Extended cab 350 700r4 98 Sonoma (TPI outa the Trans Am) 03 Yamaha 660 Raptor 03/04 660 Raptor 07 700 Raptor 85 Honda Odyssey

02-15-2005, 03:47 PM	#16
Mudder Registered User Join Date: Feb 2001 Location: East Central, MO Posts: 11,336	Some good measurments on the two frames would be great. It would answer some questions.

02-15-2005, 03:57 PM	#18
ChevyDude Senior Member Join Date: Jun 2003 Location: Westminster, CO Posts: 3,071	Does Tree know you are sporting a 31 gal. tank....that girl maybe on the way to Owensville, if she knew that,,,,, Ya know size matters!!! LMFAO!!!! __________________ Alex 1971 Lil' Red 350 SBC 700R4



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02-15-2005, 05:46 PM	#20
ChevyDude Senior Member Join Date: Jun 2003 Location: Westminster, CO Posts: 3,071	You are involved....and I am really laughing my A$$ off...couldn't help it Tree...guess that's my weird sense of humor.....I'm still laughing girl!!! Well then......Move it!!! Both my trucks have had the tank relocated! __________________ Alex 1971 Lil' Red 350 SBC 700R4

02-15-2005, 06:11 PM	#22
ChevyDude Senior Member Join Date: Jun 2003 Location: Westminster, CO Posts: 3,071	Still laughing....and maybe I need a beer,,,Hey can you get me a beer hun? :nut: ya know they saying laughing is good for you...but that last outburst nearly killed me,,,,LOL! __________________ Alex 1971 Lil' Red 350 SBC 700R4

02-15-2005, 07:52 PM	#23
67ChevyC10Stepside Registered User Join Date: Mar 2004 Location: Butler PA Posts: 3,032	a thing i have a question about is.....does the flange of the blazer tank rest inside the frame rails or underneath? the only way i could see it fitting is underneath but like that i would think if a strap would let go things could get interesting when it started skidding on the ground sparking. __________________ 67 c-10, 400 SB, TH350, 4.10 gears, Blazer tank,camaro tach, sidemarker fuel fill (soon) WTB: stepside parts, 67 front end parts, 67 small window cab. posi for 3.73 or 4.10 for 12 bolt and 10 bolt.

02-15-2005, 08:17 PM	#24
aitch Senior Member Join Date: Sep 2004 Location: N.W. Arkansas Posts: 456	I've got a LWB and it measures 27 3/8 between frame rails. aitch

02-15-2005, 08:40 PM	#25
454_72_4X4 Registered User Join Date: Apr 2004 Location: N.E. MO Posts: 1,749	Here's the 'burb frame section and tank I have; Fuel fill on the left side, correct? (Been a loonng time since I cut this out!). If it's left side fill then it measures 27-3/8 in. from the inside edge of the frame c channel to the inside edge of the opposite side. That's behind the tank. In front of the tank it measures 27-5/8 in. Top view; Can anybody tell me the capacity on this tank? Guesses maybe? __________________ 72 C20 4X4 454 4 speed 89 Trans Am (was) 305 TPI 700r4 93 C1500 2wd Extended cab 350 700r4 98 Sonoma (TPI outa the Trans Am) 03 Yamaha 660 Raptor 03/04 660 Raptor 07 700 Raptor 85 Honda Odyssey

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