The Domie

Which cooler line is the return line, at the tranny? I can't find where they hit the cooler in the rad area. There is so much junk up there. I want to drop the return line and let the tranny pump out all of the fluid in the converter as I add new. I'm puting on my Mag double deep and putting in Amsoil.
Anybody have any pics?

Blue600

Rear line is the return.

twest

DO NOT DISCONNECT THE LINES,I have replace many lines from customers and shops doing the Flush.Also you will not Pump all the fluid out of the TC by disconnecting the line.If you do decide to disconnect the line, It is the one with the Drain-back valve install,Also disconnect it at the Auxiliary cooler side,Its A PITA to disconnect at the Valve side and re-connect.If you get it all (stock) it will be close four Gallons or More. Make sure the Fingers in the coupling look good, if not pull them down a bit before re-connecting.

New Lines Retail $85.00 and come with the DB valve.

Benson

Just installed my Mag DD pan two weeks ago. Sure holds a lot of juice. The manual says you'll replace about 4 quarts with a service. Well, I got close to 7 out and put about 11 back in. The DD pan holds 4 more quarts. I have no idea why they say you'll only get about 4 out.

The cooler supply line is the one with the fitting on it. That was a recall on the '03 and '04's. They had to install a fitting to avoid damage caused by surging pulses under heavy loads.

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handymantim

I just installed my Mag DD pan and Amsoil today. To summarize....it was a PITA and it took about 3 hours.

To answer your question, it's the rear line on the tranny and I just disconnected it at the tranny and attached a 4' piece of clear tubing and routed it out to a bucket by the driver's door where I could monitor it.

First I dropped the old pan and got ATF all over the place since the pan to catch the oil wasn't big enough. The magnet in the bottom of the pan had probably 3/16" of sludge stuck to it. For reference I tow a 4-5K trailer in town every day and I'm at 17K miles.

Then I removed the old filter which required a torx bit (which is a different size than one of the band torx screws. Installed the spacer block for the filter but that required yet again a different torx bit because the torx bit I used to remove the old filter was in a socket and the socket didn't fit in the spacer block holes. Same size torx bit but different design.

Adjusted the bands. The band inside the cover uses a 1/4" socket whereas the band outside the cover uses a torx bit. Don't forget to reattach the spring when you're finished adjusting the band outside the cover. Keeping the adjusting screw in position while using a socket to tighten the locking nuts was a bit of a guess. After test driving there didn't seem to be any difference in shifting.

Installed Mag-hytec cover. Nice cover! However, tightening the allen screws to 13 ft lbs required some southern engineering with an extension, 1/4" socket and 1/4" allen wrench cut straight. I used the old gasket we'll see how that goes.

Filled the pan with new fluid. Jacked up rear wheels and placed on jackstands. Started truck and not much fluid came out until putting into gear or neutral. Initial fluid was dark red. After about 3 or 4 refills of the pan which left about 1.5 gallons in the last jug of Amsoil I reattached the return line and ended up using all the new fluid and came up short probably 1 quart.

The Domie

Thanks Handymantim. That is the kind of explaination I was counting on from our members!