11-27-2016, 12:11 PM
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: One or two ducts to center vent?
Quote:
Originally Posted by dmjlambert
In the LMC catalog there is an option for buying plugs to replace one of the hoses to the A/C center vent (plugs are item 16). And in the Brothers catalog they have a special adapter for the center vent that only has a fitting for one hose, and they are claiming on their website and in a video that output of the center vent is increased by 40% by using their one-hose adapter because when using 2 hoses their is a canceling effect. They are saying "A similar modification was illustrated by GM back in 1972 to fix the problem of poor center vent volume." Does anybody have any experience with this one-hose-to-the-center-vent idea vs. the factory design?
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I plugged off the drivers side for 2 reasons. 1 the speakers I use in the center grill made it impossible to get the hose there. 2 I read the article about plugging one side off. To be honest I can't tell you if it did anything are not for the flow.
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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
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.
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