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Old 02-14-2010, 09:42 AM   #4
russgt
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Join Date: May 2008
Location: Waukesha, WI
Posts: 904
Re: 1974 Blazer 4x4 (need info on part)

An old trick but a pain in the butt would be to fill it up and measure how much it took, but then you would have to empty it before install. My 76 has the option in the glovebox for the 31 gallon tank, NK7, does yours say anything?
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76 blazer
86 Silverado
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