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Click on image for the lowdown. 
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| | | Forums66 Topics128,056 Posts1,055,789 Members48,426 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | There should be a drain plug under the cab where the flex line connects on. There may be an el or a petcock there. Be careful when you take the plug out and hold the petcock securely. There is about a 2" long brass nipple that goes into the tank, and it is easily broken. | | |
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