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August 27th, 2007, 04:27 PM
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trans cooler line fitting size?
What is the size of the trans cooler line fittings that screw into the factory radiator? I want to put an adapter fitting on it to AN so that I can run AN lines to my external cooler. Thank you.
one more ?.... Is it ok to use quick disconnect fittings on these lines? I see a lot of race cars use them to make pulling the trans easy for convertor changes. I have a street car but dont drive it much. Opinions? .
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Stock 86 GN, just like the rest of em!  CLICK HERE FOR VIDEO <> CLICK HERE FOR MY FQUICK GARAGE 
Last edited by SPOT MY 6 : August 27th, 2007 at 04:30 PM.     
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August 28th, 2007, 02:37 PM
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Trans cooler lines are 5/16" flare.
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1987 GN, 1986 T, 1984 Hurst Oldsmobile with 1987 GN drivetrain
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August 28th, 2007, 04:30 PM
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I have quick disconnects on my lines and run steel braided lines through the frame rail on the passenger side so they are out of the way. They work flawlessly. Make sure the inside diameter of the fittings is not smaller than the return fitting in the transmission.
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Blue GN: Old combo 559whp/706wtq. New buildup to come with race ported GN 1 heads and intake  . Black GN:Stock 147k shortblock except cam ,KB 70 mm TB and plenum, ported irons 1.77in 1.5ex, RJC head gaskets, ported stock intake, 212-212 comp roller, 1.65 T&D's, RJC powerplate, 1" plenum spacer, 83 lb/hr injectors, double pumper, FAST XFI, G-Body FMIC, welded ported stock manifolds, 3.5 dp, CPT 66BB GTQ, PAC dual nozzle alky injection, Dusty PTC 9.5", 200 4-R by me with billet shafted forward drum, billet input, billet ring gear and planet. 8.5 rear with Auburn, 28 spline Moser axles, and LPW girdle. 10.29@133.46mph .Time with old combo (stock ecm, p-trim turbo, and loose converter) 10.88@126mph. Stage II coming soon .
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August 28th, 2007, 10:40 PM
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The factory fittings are 1/8"NPT to 5/16" flare and right angle as well.
So the factory radiator should have 1/8" NPT female threads in it. Make sure your new lines and adapter will clear that space where they have to wrap around, there's not much room there to work with.
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