Braided Flexible Transmission lines - ClassicOldsmobile.com


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Old October 11th, 2011, 01:58 PM   #1
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Braided Flexible Transmission lines

I would like to change the transmission cooler lines on my 70 model to a flexible stainless. The factory lines are running too close to the headers. Anyone know of a kit I can get with everything I need to do this?

Thanks
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Old October 11th, 2011, 03:17 PM   #2
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I made my own using Hydraulic line and comppression fittings. I ran them up and over the wheel well, next to my heater hoses, and into the radiator! Worked like champ!
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Old October 11th, 2011, 05:23 PM   #3
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I used this kit from jegs. Looks and works great, I did have to get extra fittings for the radiator.

http://www.jegs.com/i/JEGS+Performan...60362/10002/-1
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Old October 12th, 2011, 04:37 AM   #4
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I did this a few years ago on my 72,with braided hose amd AN fittings.I believe I used -6AN hose.The only special fitting I needed were the ones for the transmission case.They were a british thread at one end,with a -6AN at the other.
I've seen people try & install regular pipe thread fittings into the case,and they often crack it.Just make sure you have the correct fittings.
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Old October 12th, 2011, 05:13 AM   #5
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Thanks for all the replies.
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Old October 22nd, 2011, 04:13 PM   #6
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Finally got the new lines on today. I used hydraulic line and compression fittings and ran them over the fender well as well.
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File Type: jpg Trans Lines.jpg (49.8 KB, 123 views)
File Type: jpg Fender Well.jpg (54.9 KB, 108 views)
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Old October 22nd, 2011, 05:17 PM   #7
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Good job! Looks like what I did!
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Old June 27th, 2012, 02:56 PM   #8
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Hey Oldcutlass I like those transmission lines you have there,where did you get them?
Thanks..
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Old June 27th, 2012, 04:33 PM   #9
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Those are fabricated hydraulic lines with compression fittings on each end. I just cut the tubing at the radiator and transmission, slipped the compression fittings over the lines and tightened them down. They have been working flawlessly since last October.

I measured and had them fabricated at my local hyd shop, $80.00 if I remember! I got tired of trying to route my trans lines around the headers. Now they are up and out of the way.

Last edited by oldcutlass; June 27th, 2012 at 04:36 PM.
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Old July 5th, 2012, 07:00 PM   #10
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If anyone is interested I'll give a more technical explanation of how to use AN hose and fittings to accomplish this...as I just bought the fittings today.

If your transmission has the adapter fitting still in it, it is 1/4 NPSM on one end and 1/2-20 inverted flare (female) on the other. This is how the transmission was made from the factory. If you still have these adapters then you will need the following parts:

(4) 1/2-20 inverted flare to -6 AN adapter fitting
(4) -6 hose ends
(2) 6' lengths of steel braided, pro-lite, or push lock hose.

1. Install a 1/2-20 inverted flare adapter into each fitting in the transmission and into the radiator
2. Install -6 hose ends on the braided hose (4 fittings)
3. Install -6 braided hose onto the inverted flare/ -6 adapters (route hose away from header as much as possible)
4. Secure along fender well or frame

Last edited by ah64pilot; July 5th, 2012 at 07:02 PM.
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Old February 17th, 2013, 05:54 PM   #11
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Looking at doing this for my resto project. Any special tools needed/desired for this for the steel braided/ AN setup?
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Old February 17th, 2013, 06:41 PM   #12
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Probably don't need any special tools, you can PM ah64pilot (steve) and ask specific questions about his install.
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Old February 27th, 2013, 03:55 PM   #13
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Already sent the information to apache but for continuity sake I'll add it here as well.

You don't need any special tools. If you want to keep from scratching up the fittings use a GOOD adjustable wrench and a rag. The single most important tool you can use to put the fittings together is some SILICONE spray lube.

Use the silicone spray on the inside of the braided hose and on the nipple of the fitting. Put the two together and start the threads. Holding pressure on the hose, tighten the fitting (hold one side in a vice, with a rag to keep from scratching it) and the other side use the wrench. The silicone works so well, you shouldn't have any problem with the hose pushing back, but hold it just in case. Tighten the fitting and you're good to go.

Remember to check for leaks
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