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Andy4639 · 12-28-2019, 10:46 AM

Did this about 25 years ago on my 71. I put the orifice in the line right at the battery tray at the union so it's easy to get to for changing. The system works great. I originally used normal R-12 parts because at the time no kits where available.
Later I bought the Classic Air group kits to get better performance out of the AC.

12-28-2019, 10:46 AM	#8
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,945	Re: I don't like expansion valves Did this about 25 years ago on my 71. I put the orifice in the line right at the battery tray at the union so it's easy to get to for changing. The system works great. I originally used normal R-12 parts because at the time no kits where available. Later I bought the Classic Air group kits to get better performance out of the AC. Attached Images __________________ 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 http://upstategmtrucks.com/ 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.