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replacement fuel tank 1972 cutlass

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Old April 28th, 2018, 06:37 PM
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replacement fuel tank 1972 cutlass

Hi, looking for some feed back on replacement fuel tanks. I have heard that the new tanks do not come with baffling that the original factory tanks had, is this true about factory tanks having them or have I been being told a bunch of bull? I was looking at the AMD and Spectra Premium types , anyone use either of these and if so any issues? Thanks for your help.
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Old April 28th, 2018, 07:45 PM
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Spectra....non chineasium Canadian made. Call their tech line and ask the question. Don't forget to follow up with that answer here for future searches. I'd be interested in this answer as well.
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Old April 28th, 2018, 09:39 PM
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I got a Spectra and it's been great. TBH, I don't even know how or if it's baffled inside, all I know is it works just like the factory one and after ten years plus, it still looks perfect.
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Old April 29th, 2018, 02:54 AM
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Thumbs up fuel tank

Spectra that is the way to go they the only tanks I use in my cars
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Old April 29th, 2018, 06:44 AM
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Spectra GM34R. Exact replacement fit for 72 Cutlass. I put one in my car and it fits perfectly. Only difference I can see is the fuel vent in the filler neck. Otherwise it's very close to being original. I kept my old tank and have it in storage. It actually has the part number stamped on it!
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Old April 29th, 2018, 06:49 AM
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Spectra from Rock Auto.
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Old April 30th, 2018, 03:53 PM
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Well, talked with the powers to be at Spectra today and they are saying their tanks are built as gm did. Looks like that is the way I am going to go.
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Old April 30th, 2018, 05:22 PM
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Here's what it looks like from Spectra Premium



Well packed in heavy box and extra protection inside.





This pattern matches the original tank!



Tank is sprayed with a waxy substance to prevent corrosion



Clear view of the 3 vents



Installed in car, used Patton Glades tank pad even though 72 never came with it. Original straps. Prior to installing Trumpet exhaust.
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Old April 30th, 2018, 06:45 PM
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None of the '68 or '69 tanks I have seen have baffles.
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Old April 30th, 2018, 07:26 PM
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Allan R, did you use the insulators on the tank straps or just the straps? I was thinking of painting with tank tone, but on further thought I am looking into just using a urethane low gloss type clear instead.
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Old May 1st, 2018, 07:24 AM
  #11  
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The tank straps are the originals that came with the car. They are galvanized and all I did was clean them up and coat them with some clear coat. No, I didn't use any insulators. They aren't necessary. When that tank is strapped up it's pretty snug. The only insulator I used (as mentioned) was the tank pad from Patton Glade (70 Post on this site).




Tank Pad Insulator. I opted to install this even though it never was done at the factory in 72. Credit Patton Glade (70 Post)


You will also notice there's a slight difference in the filler neck baffle. It doesn't affect filling though. It's just not exactly the same as original.






Original GM tank filler neck/baffle
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Old May 1st, 2018, 10:30 AM
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yellowrocket - the factory DID NOT use any material b/n the straps and the tank...not necessary as once everything is tightened up there is not any movement, rubbing, etc b/n the straps and tank.

Thumbs up to you Allan! Thanks for the mention.
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Old May 1st, 2018, 12:38 PM
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Originally Posted by 70Post
not necessary as once everything is tightened up there is not any movement, rubbing, etc b/n the straps and tank.

Thumbs up to you Allan! Thanks for the mention.
If your tank is moving around you got problems
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Old May 2nd, 2018, 04:37 PM
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Well, received the new tank today from Rock Auto. Sad to say it is on its way back, packed poorly with filler tube exposed and no support it is bent about 20 degrees to the right.
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Old May 2nd, 2018, 06:46 PM
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Originally Posted by yellowrocket
Well, received the new tank today from Rock Auto. Sad to say it is on its way back, packed poorly with filler tube exposed and no support it is bent about 20 degrees to the right.
That's a bummer! I bought my replacement tank from Rock Auto, as well. It is an exact match for the OEM tank from my 442. It was wrapped, padded, and boxed the same way Allan R's was. There was a large, sturdy box for the tank-proper, then a smaller box for the filler neck, put together from waste/cut-down cardboard that was firmly attached with more staples than necessary, and filled with closed-cell plastic sheet material like you would wrap dishes with when moving (same stuff Allan's tank is wrapped with). I was impressed with the thought that went into the shipping and packing.

Rich
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Old May 3rd, 2018, 06:23 AM
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I got mine from Rock. Filler was tweaked a little but I was able to bend it back w/out too much effort. No harm no foul
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Old May 3rd, 2018, 06:50 AM
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Originally Posted by droptopron
I got mine from Rock. Filler was tweaked a little but I was able to bend it back w/out too much effort. No harm no foul
Originally Posted by yellowrocket
Well, received the new tank today from Rock Auto. Sad to say it is on its way back, packed poorly with filler tube exposed and no support it is bent about 20 degrees to the right.
Yikes! I bought mine from NAPA in Canada and it arrived in perfect condition. Sorry to hear you guys experienced issues with the way it was handled during shipping. It takes a fair bit of force to move the filler neck so someone was not even close to careful with it.
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