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Old 07-24-2019, 08:18 AM   #2
Andy4639
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Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
Thumbs up Re: AC & Electric fans...

I did a wire change to this and it's working great now for 2 years. I used a 5 pin relay as pictured. The low speed fan wire is ran to 87A and comes on whenever the car is on but the fan is also wired to a adjustable thermostatic so unless the temp is above the set point the low speed want come on.
Now if it is on and I turn the AC on it will kick the low speed off and the high speed will start running. Once the vehicle is at speed though the paddle switch on the micro switch will cut it off and save your electric fans motor.
The micro switches I used are golf cart micro switches good up to 36 volts and 250 amps DC.




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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71


Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour


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Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!

LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.

Last edited by Andy4639; 07-25-2019 at 09:38 AM.
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