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Old 04-17-2017, 09:06 PM   #1
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Join Date: May 2010
Location: Lewis County, WA
Posts: 1,520
Defrost only?

Time to tackle the heater box in my '77 K35. I never use modes other than defrost, how would I go about making that permanent? Anyone have pictures, diagrams or what to look for? I don't have the truck at my house, it is 45 miles away at my timber property so I'm going to print out whatever I info I can find.
'77 K35 - 454, TH400/NP203, 4.56 D60/14bFF
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