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Old 01-08-2019, 08:03 PM   #1
79K5er
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Join Date: May 2014
Location: Simi Valley
Posts: 9
Temperature controller from a 78 work in a 74?

Iím picking up a 1078 C30 as a parts truck for my 1974 Suburban K20. The previous owner swapped an 89 Suburban front clip and gauges and dash and power doors in. The wiring is a total hack job and I want the 70ís look. One thing thatís jacked up is the temperature control switch (the entire assembly, not just the blower speed switch). The switch in the 78 is in decent shape. LMC shows a different assembly for 74-75 and for 76-78, but wasnít sure if the appearance is what changed or if the wiring and vacuum lines changed as well. Does anyone know by chance? Would rather use that one than buy a new one 🤷🏼*♂️
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1979 Chevy K5 Blazer
350/TH350/NP203/10B/12B
Bone stock, for now. Awaiting engine rebuild.
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