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Old 07-17-2004, 03:01 AM   #1
GMC Jim
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Join Date: Dec 2002
Location: Portland, Oregon
Posts: 901
There is 2 different blowers used....The fan for heater only draws 6.25 amps; and RPM range is 2550 to 2950. Fan used for air conditioning draws 16.5 amps and RPM is 3700 minimum......The air conditioniong fans puts out about 2/3 more air, I would estimate..... ( Above date is listed for 1971 GMC/Chev Trucks)
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'71 GMC;fleetside;PB/PS/AC/CC/402 Eng./Custom Paint/110,000act miles/3 fuel tanks(52gal).
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