Transmission lines
#2433214
01/12/18 02:55 AM
01/12/18 02:55 AM
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Joined: Mar 2003
Posts: 1,449 Martinsville, IN
cdwmotorsports
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OP
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Martinsville, IN
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I want to get away from the stock transmission lines on my Demon. Does anyone know what size fitting goes in the 727? Or if I can just screw an AN fitting on to the stock fittings?
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Re: Transmission lines
[Re: cdwmotorsports]
#2433233
01/12/18 04:24 AM
01/12/18 04:24 AM
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Joined: Aug 2003
Posts: 43,163 Bend,OR USA
Cab_Burge
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I Win
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Bend,OR USA
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They may be 1/4 NPT, do you have a 1/4 NPT tap to see with ?
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Transmission lines
[Re: cdwmotorsports]
#2433291
01/12/18 11:27 AM
01/12/18 11:27 AM
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Joined: Jan 2003
Posts: 13,363 Marion, South Carolina [><]
an8sec70cuda
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I Live Here
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Posts: 13,363
Marion, South Carolina [><]
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Pretty sure they are 1/8" NPT. I use -6 AN also. Many will say to use the more expensive PTFE lined AN hose, but it isn't needed. It is better quality, but not required for trans lines.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Transmission lines
[Re: cdwmotorsports]
#2433342
01/12/18 01:20 PM
01/12/18 01:20 PM
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Joined: Oct 2007
Posts: 4,206 New York
polyspheric
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master
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New York
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Yes, use 3/8" line, don't want to slow down the cooling cycle. Put a B&M filter in the line somewhere before the cooler that you can service it to keep it clean (don't accumulate trash inside the cooler) and detect friction material loss.
Boffin Emeritus
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Re: Transmission lines
[Re: cdwmotorsports]
#2433421
01/12/18 03:19 PM
01/12/18 03:19 PM
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Joined: Mar 2011
Posts: 3,076 Michigan
A727Tflite
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Michigan
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Here is an image of one of those magnefine filters. Nothing wrong with the B & M except you have to cut then dispose of it each time you want to take a look. Plus it takes up a bunch of room. Flow is not an issue with the smaller filter but if you use one of these on a 1/2" line setup use the bug filter fittings. We did exhaustive test on these filters. And you Chrysler dealer techs will remember seeing these filters in our Reman trans kits. Those that used them ended the multiple trans failures when you followed the directions.
Last edited by Transman; 01/12/18 03:23 PM.
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Re: Transmission lines
[Re: cdwmotorsports]
#2433449
01/12/18 03:47 PM
01/12/18 03:47 PM
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Joined: Dec 2005
Posts: 11,552 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
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Fulton County, PA
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-6 Teflon. Yes, it's worth the little extra money. We've used some of the cooler with fan packages back under the car to eliminate some of the spaghetti at the front of the car. Has worked OK.
If the results don't match the theory, change the theory.
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Re: Transmission lines
[Re: cdwmotorsports]
#2433513
01/12/18 05:36 PM
01/12/18 05:36 PM
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Joined: Feb 2015
Posts: 2,074 CA
crackedback
top fuel
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CA
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-6 teflon/PTFE hose. I used some from this place. The only issue I had was the ends were not the standard sizes so the fancy AN wrenches didn't fit. Chinese stuff I'm sure and tolerances. Worked OK after that was figured out. http://anfittingsdirect.com/
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Re: Transmission lines
[Re: cdwmotorsports]
#2433521
01/12/18 05:57 PM
01/12/18 05:57 PM
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Joined: Mar 2003
Posts: 1,449 Martinsville, IN
cdwmotorsports
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Since my car is outside and it’s snowed about 5” this AM does anyone have the ability to measure from the trans to in front of the radiator? I need to know line length so I can order this stuff. I’m using aeroquip startlite line and fittings.
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Re: Transmission lines
[Re: A727Tflite]
#2433543
01/12/18 06:51 PM
01/12/18 06:51 PM
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Joined: Aug 2003
Posts: 43,163 Bend,OR USA
Cab_Burge
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Bend,OR USA
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The FWD cars used 5/16" line, most RWD cars in the day used 3/8" and so did most gas engine trucks, and we went to 1/2" lines on the 47/48 diesel for extra cooling of the lube.
All the early(1957 to 1974) Mopar V8 and leaning six cars automatic trans. cars I worked on, including the street hemi cars, had 5/16 O.D. lines on the tranny up to the radiator heaters I'm not sure what size lines my 2006 Ram 3500 4WD truck with the factory towing packages has for line I.D. or O.D. sizes Maybe I should go check My first Dodge CTD Ram 2500 24 valve (1998 1/2) had the factory towing package on it, I added a tranny temp gauge and found out that it should have had a thermostat to the external tranny cooler, the trans temps never got above 140F when not towing, summer or winter in the CA Mojave desert I haven't added a gauge to this truck due to not wanting to worry about the trans temps
Last edited by Cab_Burge; 01/12/18 06:53 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Transmission lines
[Re: cdwmotorsports]
#2434356
01/14/18 12:38 PM
01/14/18 12:38 PM
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Joined: Mar 2003
Posts: 1,449 Martinsville, IN
cdwmotorsports
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OP
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Martinsville, IN
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Since my car is outside and it’s snowed about 5” this AM and it’s -9 does anyone have the ability to measure from the trans to in front of the radiator? I need to know line length so I can order this stuff. I’m using aeroquip startlite line and fittings.
eBay-cdwmotorsports
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Re: Transmission lines
[Re: cdwmotorsports]
#2434713
01/14/18 11:41 PM
01/14/18 11:41 PM
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Joined: Aug 2003
Posts: 43,163 Bend,OR USA
Cab_Burge
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I Win
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Bend,OR USA
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What year and body style? The Plymouths have two inch longer wheel base so they may have different length lines also OOPS I just reread the first post
Last edited by Cab_Burge; 01/14/18 11:42 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Transmission lines
[Re: cdwmotorsports]
#2435346
01/16/18 12:48 AM
01/16/18 12:48 AM
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Joined: Nov 2003
Posts: 36,040 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
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Posts: 36,040
Lincoln Nebraska
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I was thinking that someone priorly said that the ID somewhere in the internal cooling passages inside the trans makes going to a 3/8 line a moot point. If this is bogus I will for sure tap to the next larger size as those brass 1/8 NPT/inverted flare fittings are available in the next larger size along with useing 3/8 line.
live every 24 hour block of time like it's your last day on earth
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