G56 Transmission cooler - Page 5 - Dodge Cummins Diesel Forum
3rd Gen. Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect...NO ADVERTISING

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post #49 of 61 (permalink) Old 09-11-2019, 11:23 PM
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You will like the cooler. I put one on my manual tranny and when towing in 6th, it helps keep the temps down. My heat exchanger is under the cab with a fan.


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post #50 of 61 (permalink) Old 09-12-2019, 01:07 AM Thread Starter
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I have everything installed short of wiring the pump. I misjudged how much fluid I would need so I had to order more. I had enough to fill the transmission and half of the filter. None of the lines or the cooler are filled yet. I will just not run the pump until I get some more fluid.
G56 Transmission cooler-img_20190910_091924_1568260498607.jpgG56 Transmission cooler-img_20190911_182327_1568260665044.jpgG56 Transmission cooler-img_20190910_131932_1568260535746.jpgG56 Transmission cooler-mvimg_20190910_160931_1568260578948.jpg

Tow Pig - 2006 3500 CCLB SRW, G56. Far from stock and still slow
Project - 2002 2500 QCLB SRW, NV5600. Not Running
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post #51 of 61 (permalink) Old 09-12-2019, 01:30 PM
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Quote:
Originally Posted by slpcrf450x View Post
They are TDS PTO covers.

whats your review on them? been eyeing for a while and they look very well machined

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post #52 of 61 (permalink) Old 09-12-2019, 04:45 PM Thread Starter
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I really like them. The one on the passenger side has the corrected height fill port for the extra quart of fluid. The one on the driver side that I did all the modifications to was a blank and it's only $45 IIRC. if you were planning on doing a cooler like this I would definitely go with these over something like the fast coolers. There's a significant cost difference and I don't think you get all that much cooling out of bolt on type coolers.

Tow Pig - 2006 3500 CCLB SRW, G56. Far from stock and still slow
Project - 2002 2500 QCLB SRW, NV5600. Not Running
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post #53 of 61 (permalink) Old 09-14-2019, 04:27 PM
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I took some photos of my setup. I have a 34 row exchanger with 1/2 an fittings and lines. My exchanger is over the driveshaft. The oil gets pulled from the drain hole and it gets returned on the fill hole.
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post #54 of 61 (permalink) Old 09-14-2019, 06:50 PM Thread Starter
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I took some photos of my setup. I have a 34 row exchanger with 1/2 an fittings and lines. My exchanger is over the driveshaft. The oil gets pulled from the drain hole and it gets returned on the fill hole.
That looks good and out of the way. What did you use for a pump? Is that an 4500 or 5600? The drain and fill must be pipe thread? The drain on the g56 is directly on the bottom so I didn't want to have anything hanging down. There are also not pipe thread. I'm sure I could have figured it out and used the fill for the return, but the plate was easy and it was coming off anyway.

Also the bar mounted high above your driveline, is that for a traction bar setup?

How long have you run that gear vendors setup? Do you tow with it? How much power are you running through it?

Tow Pig - 2006 3500 CCLB SRW, G56. Far from stock and still slow
Project - 2002 2500 QCLB SRW, NV5600. Not Running
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post #55 of 61 (permalink) Old 09-14-2019, 09:25 PM
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Quote:
Originally Posted by slpcrf450x View Post
That looks good and out of the way. What did you use for a pump? Is that an 4500 or 5600? The drain and fill must be pipe thread? The drain on the g56 is directly on the bottom so I didn't want to have anything hanging down. There are also not pipe thread. I'm sure I could have figured it out and used the fill for the return, but the plate was easy and it was coming off anyway.

Also the bar mounted high above your driveline, is that for a traction bar setup?

How long have you run that gear vendors setup? Do you tow with it? How much power are you running through it?
I used a standard transfer pump. I have one for my engine pre-oiler (attached below) and I also have another one for my auxilary fuel tank pump as well. It also has a spin on filter plumbed in as well.

Makes sense on the drain plug if it is on the bottom. I would have done the same if that were the case for me.

The truck is a 2003 2500 but heavily modified. I swapped in a 6.7 cummins with an Eaton FSO8406a (much more stout).

The bar above the drive line is a ladder bar. Traction bars are Junk. I am putting 1000 hp thru my axle and I don't get any axle wrap and I also go off roading and I still get full articulation compared to a traction bar setup.

I have had the gear vendors for a couple years. I haven't broken it so far. I have towed an rv with it but I never engaged it while towing. I usually use it when I am unloaded cruising on the freeway. I get 1650 rpm at 70mph with it in the highest gear. Overall I like it but I am worried I could break it if I am too hard on it. My truck weighs 9300lbs with me in it and I can spin my 37inch tires going 70mph. Again, it hasn't broken yet, but i am careful when I use it.
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post #56 of 61 (permalink) Old 09-14-2019, 09:51 PM Thread Starter
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Oh yeah, I remember the Eaton now. Does it run warm without the cooler?

I've got some traction bars on mine that I didn't get the angles right on so they don't let the suspension move like it should. I've learned a lot since then and it's on the to do list to change them. I think if I get the angles right it should allow proper movement and articulation. If I was going to be doing serious off-roading I would go with a ladder bar setup. I've got a little Toyota for that though.
G56 Transmission cooler-img_20190822_063643_1568509568339.jpg

That's a pretty sweet rig you've got.

Tow Pig - 2006 3500 CCLB SRW, G56. Far from stock and still slow
Project - 2002 2500 QCLB SRW, NV5600. Not Running

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post #57 of 61 (permalink) Old 09-14-2019, 09:59 PM
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Quote:
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Oh yeah, I remember the Eaton now. Does it run warm without the cooler?

That's a pretty sweet rig you've got.
it runs warm when I am towing in 6th gear. Otherwise, it is fine.

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post #58 of 61 (permalink) Old 10-01-2019, 10:27 AM Thread Starter
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My initial impression is that this Amsoil MTG runs cooler than the Mobil Delvac synthetic 50 with a quart of Amsoil syncromesh added. (To help with tough shifting) without the cooler pump running.
The weather is significantly cooler though so it isn't that much of a direct comparison. If it will warm again I will be able to tell for sure.
Another thing to note is that it seems to be shifting very well.
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Tow Pig - 2006 3500 CCLB SRW, G56. Far from stock and still slow
Project - 2002 2500 QCLB SRW, NV5600. Not Running
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post #59 of 61 (permalink) Old 10-01-2019, 11:00 AM
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Do you have any concerns of the oil temps being too low?

What about condensation buildup internally?

What temp does your pump kick on at? (sorry, I think you mentioned it earlier)

AFE PG7 drop in filter, AFE Torque Tube, HTT 2.5 turbo, AFE e-mani, ATS Arc Flo, 50HP DDP , 423k, HPTuners, G56, 25.065 mpg, mpg threads ->https://www.cumminsforum.com/forum/3...l#post23312562
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post #60 of 61 (permalink) Old 10-01-2019, 12:47 PM
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I spy special fasteners , Tcase adapter plate and a giant Hiem suspention thingy .

NOT your average truck !

That truck might deserve its own feature thread !!
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