Tranny cooler install ? - Pirate4x4.Com : 4x4 and Off-Road Forum

Shaker · 02-18-2002, 03:23 PM

I just wanna make sure for a friend of mine. He has a 97 dodge with auto tranny (just replaced) he wants to put a "tranny cooler" on it..... Is the bottom line the "return" line on the auto? (like chevy's" Just making sure........Thanks guys

Pavemen · 02-18-2002, 03:47 PM

When I did mine, I just got the truck to temp and then felt for which line was cooler. That is the return line.

Shaker · 02-18-2002, 04:47 PM

Quote:

Originally posted by Pavemen
When I did mine, I just got the truck to temp and then felt for which line was cooler. That is the return line.

And which 1 was it....... top or bottom?

Pavemen · 02-18-2002, 06:36 PM

I don't have access to the truck right now. I think it was the bottom one, but not 100%.

jeepnmatt · 02-21-2002, 01:16 PM

the top one is the return (to tranny) line. this is how i found out:

pull the plug wire off the coil. loose the fitting on the line going into the top of the radiator and pull the line away from the radiator. put the tranny in Neutral ( these trannies don't pump in Park). have a friend crank the engine and watch you to know when to stop. fluid should shoot out of the RADIATOR, meaning it would be going into that line you just disconnected and back to the tranny.

now, this is what i did. buy some Aeroquip Socketless fittings and hose and bypass the factory cooler (heater, your cooling system operates at 195º which is top end of the tranny temp scale) all together. run a big aux cooler. i use B&M p/n 70266 ($60 at Summit Racing) and Aeroquip AN-6 fittings. the fittings fit perfectly in the rubber hose that runs across the frame rail up in the front pass-side corner of the truck. they are push-on, but mine have been in service for over a year with no problems or leaks to this area of the system. get the steel NPT to AN adapters to convert the cooler to AN fitting. use teflon pipe dope on the pipe threads, but not on the AN fittings (i just lubed them with tranny fluid).

i also run a Perma-Cool (p/n 1791) remote filter whick takes the same filter as the engine does (NAPA Gold 1452). i buy them by the case and change the filter every 5000 miles and add a quart of fluid. i then change the fluid, filter inside the pan, and remote filter every 15000 miles.

i bought my filter, fittings, and hose from

http://www.racerpartswholesale.com

hope this helps! matt

email me for some pics.

02-18-2002, 03:23 PM	#1 (permalink)
Shaker Zeus of the Sluice Join Date: Mar 2001 Member # 3694 Location: Chesapeake, VA, USA Posts: 3,584	Tranny cooler install ? I just wanna make sure for a friend of mine. He has a 97 dodge with auto tranny (just replaced) he wants to put a "tranny cooler" on it..... Is the bottom line the "return" line on the auto? (like chevy's" Just making sure........Thanks guys __________________ Need Steering? www.shakerbuilt.com Too Many Projects not enough Time...

02-18-2002, 03:47 PM	#2 (permalink)
Pavemen Registered User Join Date: Jul 2001 Member # 5670 Location: Modesto, CA Posts: 1,788	When I did mine, I just got the truck to temp and then felt for which line was cooler. That is the return line. __________________ Nothing to see here, move along

02-18-2002, 06:36 PM	#4 (permalink)
Pavemen Registered User Join Date: Jul 2001 Member # 5670 Location: Modesto, CA Posts: 1,788	I don't have access to the truck right now. I think it was the bottom one, but not 100%. __________________ Nothing to see here, move along

02-21-2002, 01:16 PM	#5 (permalink)
jeepnmatt Registered User Join Date: Feb 2002 Member # 9994 Location: Indianapolis Posts: 947	the top one is the return (to tranny) line. this is how i found out: pull the plug wire off the coil. loose the fitting on the line going into the top of the radiator and pull the line away from the radiator. put the tranny in Neutral ( these trannies don't pump in Park). have a friend crank the engine and watch you to know when to stop. fluid should shoot out of the RADIATOR, meaning it would be going into that line you just disconnected and back to the tranny. now, this is what i did. buy some Aeroquip Socketless fittings and hose and bypass the factory cooler (heater, your cooling system operates at 195º which is top end of the tranny temp scale) all together. run a big aux cooler. i use B&M p/n 70266 ($60 at Summit Racing) and Aeroquip AN-6 fittings. the fittings fit perfectly in the rubber hose that runs across the frame rail up in the front pass-side corner of the truck. they are push-on, but mine have been in service for over a year with no problems or leaks to this area of the system. get the steel NPT to AN adapters to convert the cooler to AN fitting. use teflon pipe dope on the pipe threads, but not on the AN fittings (i just lubed them with tranny fluid). i also run a Perma-Cool (p/n 1791) remote filter whick takes the same filter as the engine does (NAPA Gold 1452). i buy them by the case and change the filter every 5000 miles and add a quart of fluid. i then change the fluid, filter inside the pan, and remote filter every 15000 miles. i bought my filter, fittings, and hose from http://www.racerpartswholesale.com hope this helps! matt email me for some pics. __________________ 1984 CJ-8 1986 CJ-7 1981/1992 CJYJ 1994 RAM 1500 4x4 Custom Fabrication Parts: [url]www.troutindustries.com[/url] Last edited by jeepnmatt; 02-21-2002 at 01:17 PM.

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