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Flexible line to join trans cooler hardline #3243313
07/09/24 06:39 PM
07/09/24 06:39 PM
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Toronto
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mshred Offline OP
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I am adding a cooler in series with the radiator cooler, and will have to cut into the factory hardline setup. I know that regular rubber hose and gear clamps are a no no, so what I am wondering is what kind of flexible line would be safe to run for temp and pressure in trans cooler lines that can join up to compression fittings?

Re: Flexible line to join trans cooler hardline [Re: mshred] #3243327
07/09/24 08:06 PM
07/09/24 08:06 PM
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pittsburghracer Offline
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Originally Posted by mshred
I am adding a cooler in series with the radiator cooler, and will have to cut into the factory hardline setup. I know that regular rubber hose and gear clamps are a no no, so what I am wondering is what kind of flexible line would be safe to run for temp and pressure in trans cooler lines that can join up to compression fittings?



I bought stainless transmission lines from Summit with AN fittings and it one of the best upgrades I’ve e ever done.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: Flexible line to join trans cooler hardline [Re: pittsburghracer] #3243342
07/09/24 09:03 PM
07/09/24 09:03 PM
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Fulton County, PA
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CMcAllister Offline
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-5 Teflon hose and ends. Cut and flare 5/16 tubing to make AN stuff work. Bullet proof


If the results don't match the theory, change the theory.
Re: Flexible line to join trans cooler hardline [Re: CMcAllister] #3243368
07/09/24 11:53 PM
07/09/24 11:53 PM
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Someplace you aren't
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SomeCarGuy Offline
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You could get a nozzle fitting and flare the hardline where you need to, then run the rubber hose.


I want my fair share
Re: Flexible line to join trans cooler hardline [Re: mshred] #3243371
07/09/24 11:59 PM
07/09/24 11:59 PM
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Bend,OR USA
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Cab_Burge Offline
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Are you sure you need it work scope twocents?
I put a mechanical tranny temp gauge in my 1998 1/2 Ran 3/4 ton 2WHD, that trans never got above 140F running empty in the Mojave desert in the summer time shock
Other guys had that same issue with non Mopar cars and trucks also, ATF should run at a minimum of 160F according to the oil companies tech people scope up

Last edited by Cab_Burge; 07/10/24 08:41 PM.

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Flexible line to join trans cooler hardline [Re: mshred] #3243410
07/10/24 07:49 AM
07/10/24 07:49 AM
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On the parachute mount
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n20mstr Offline
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On the parachute mount
Originally Posted by mshred
I am adding a cooler in series with the radiator cooler, and will have to cut into the factory hardline setup. I know that regular rubber hose and gear clamps are a no no, so what I am wondering is what kind of flexible line would be safe to run for temp and pressure in trans cooler lines that can join up to compression fittings?


Earls, Russel, Jegs, Summit, all make a compression fitting to AN adapters to go from hard line to AN. Use -6 then use teflon lines for the flex. Buy them premade from Induction Solutions or other nitrous supplier. It will make a nice appearing and safe installation that will last a long time also.


....BAD A$$ STREET CAR.....
Re: Flexible line to join trans cooler hardline [Re: mshred] #3243490
07/10/24 02:28 PM
07/10/24 02:28 PM
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A Banana Republic near you.
JohnRR Offline
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Originally Posted by mshred
I am adding a cooler in series with the radiator cooler, and will have to cut into the factory hardline setup. I know that regular rubber hose and gear clamps are a no no, so what I am wondering is what kind of flexible line would be safe to run for temp and pressure in trans cooler lines that can join up to compression fittings?


They make a rubber line that is specifically for Transmission/power steering as the temps of the fluid are higher.

Also you'll need to put on a bubble of some sort, partial flare, to keep the line from blowing off at some point .


running up my post count some more .
Re: Flexible line to join trans cooler hardline [Re: JohnRR] #3243829
07/12/24 06:04 AM
07/12/24 06:04 AM
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Posts: 3,431
Toronto
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mshred Offline OP
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Decided to buy some -6 PTFE hose and fittings to run the lines from my rad to cooler, and cooler back to the trans (Street car) instead of messing with the factory hard line to compression fittings on the return side. Still using the factory hard line feed to the rad. Converter is a 3500 stall, and yet to be ran, but the way I see it, keeping it cool overall definitely shouldn't hurt, and its just a dinky heat sink style cooler (trying to keep airflow to the rad and a/c condenser) so hopefully it does help it some. I could not find anywhere that carries trans hose I would be comfortable with using- some would list it, but then the temperatures it was rated for were quite low.







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