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Old 04-29-2015, 12:17 AM   #43
gerfunken
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Join Date: Feb 2009
Location: Surprise, AZ
Posts: 490
Re: 72 GMC Longbed Duramax Swap

Quote:
Originally Posted by NathenMyers View Post
1. When you guys moved the gas tank out of the cab, What kind of fuel cell did you guys get? Did you guys just get one from LMC and call it good?
After a couple of measurements, I found that the 30 gal. fuel tank from a square body suburban fits nicely where the spare tire in the '72 would sit.

I decided to go with the square-body suburban 31 gallon gas tank. That required a little bit of fabrication on the back end of the truck.

To start, the rear cross-sill (the one with the light plug) came out, and was rotated 180-degrees, and became the front brace for the fuel tank.




This effort was followed for quite some time with lots of measurements. I needed to have the fuel neck clear the frame, but at the same time not be so tall as it would bump into the bottom of the bed. Likewise, I needed to play with it front-to-back as so to sit between the bed rails. Once that was done, I finished the calculations and made the brackets.







Then it was a matter of getting it into its final resting place.



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