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Author Topic: 40 gallon suburban tank in 84 K20  (Read 3689 times)

Offline C-Moore502

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40 gallon suburban tank in 84 K20
« on: December 11, 2009, 03:29:44 PM »
I want to put a bigger tank in my K20. First of all is it possible to do this with minimal tool, and how exposed would the tank be to obstructions on the ground. It seems like it will hang sort of low and be very vulnerable to things like stumps and large rocks when I go trail riding. Any information or alternatives would be appreciated. Thank you and God bless.
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84' K20 6.2L "The Duke"

Offline 1HI4x4

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  • V30 Crew now a shortbed.....
Re: 40 gallon suburban tank in 84 K20
« Reply #1 on: December 11, 2009, 04:51:27 PM »
I have a 25 gallon Blazer/Sub. tank under mine, with a K20 the passenger side shock is going to be in the way and will have to be moved, I have plenty of clearance with mine and I'm not sure how much deeper a 40 is than a 25.
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1988 V30 Crew Cab, Cummins power, 47RH-NP205, 8" lift, 13.50x35x20 Fuel Mudders on 20x14 XD Diesels -76 offset. Soon to be repainted, seats from a 2010 Lariat to be installed.

Offline fitz

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Re: 40 gallon suburban tank in 84 K20
« Reply #2 on: December 12, 2009, 09:55:27 AM »
  My truck has a 40 gallon tank in it. It runs a 6" lift with 35"s so clearance is not a problem.
  Like 1HI4x4 said the shocks can be a problem. A grade 8 bolt welded to the spring plate will solve this issue. It also allowed me to run a shock from a 4" lift with my 6" springs (just trying to use up spare parts).
 The tank can be an eyesore from the rear depending on how well your bumper covers it up. My truck has a rollpan and a trailer hitch that helps hide the tank.
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