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Shopping for a transmission cooler #4437573
06/21/17 12:29 PM
06/21/17 12:29 PM
Joined: Jan 2007
Posts: 796
El Oeste
HawkeyeScott Offline OP
HawkeyeScott  Offline OP
Joined: Jan 2007
Posts: 796
El Oeste
I'm in the market for a transmission cooler for my 2008 Suburban with the 4L60E. This comes after our first travel trailer tow with this particular rig. Normal ATF operating temp range is 180-200 degrees, per the manual. I topped 230 up the longest, hardest pull (about five miles uphill) in 92 degree ambient heat.

I haven't bought a transmission cooler before. Anything you suggest? Anything I should steer clear of? I'll do the install myself. Ideally, the budget would be $75 or less.

Thanks in advance.

Re: Shopping for a transmission cooler [Re: HawkeyeScott] #4437587
06/21/17 12:42 PM
06/21/17 12:42 PM
Joined: Jul 2015
Posts: 127
Alberta
BigJakeChevy Offline
BigJakeChevy  Offline
Joined: Jul 2015
Posts: 127
Alberta
Here's my set up. Bypassed the engine radiator. Used to tow a 16' enclosed trailer for work everyday with 70/30 hwy/city doing 450kms a day. While in the city temps never went past 75c. I also threw in amsoil torque drive atf!



Last edited by BigJakeChevy; 06/21/17 12:48 PM.

2007 Silverado Classic 5.3L PPPP 10w30 455,000kms
Re: Shopping for a transmission cooler [Re: HawkeyeScott] #4437589
06/21/17 12:44 PM
06/21/17 12:44 PM
Joined: Dec 2013
Posts: 3,989
Manchester, England
Olas Offline
Olas  Offline
Joined: Dec 2013
Posts: 3,989
Manchester, England
If you want to do it n the cheap look for a factory combined radiator/oil cooler - it works for manufacturers so it'll work for you.
Mocal&thermostat is better though.


Cable ties should hold it
Re: Shopping for a transmission cooler [Re: HawkeyeScott] #4437599
06/21/17 01:00 PM
06/21/17 01:00 PM
Joined: May 2008
Posts: 6,298
Easton, PA
lexus114 Offline
lexus114  Offline
Joined: May 2008
Posts: 6,298
Easton, PA
wow nice set up. but does your AC still work good with those coolers in front of the condenser like that?


2017 Mercedes-Benz C300 4matic coupe 2.0 turbo
2016 Lexus RX 350 Autumn Shimmer AWD
Re: Shopping for a transmission cooler [Re: lexus114] #4437612
06/21/17 01:11 PM
06/21/17 01:11 PM
Joined: Jul 2015
Posts: 127
Alberta
BigJakeChevy Offline
BigJakeChevy  Offline
Joined: Jul 2015
Posts: 127
Alberta
My AC works perfectly! When my engine fan turns on it really helps the trans temps too lol! Doing a trans cooler like this is the cats [censored] to keep things cool!


2007 Silverado Classic 5.3L PPPP 10w30 455,000kms
Re: Shopping for a transmission cooler [Re: BigJakeChevy] #4437618
06/21/17 01:16 PM
06/21/17 01:16 PM
Joined: Jan 2011
Posts: 2,718
N.Ohio
Lubener Offline
Lubener  Offline
Joined: Jan 2011
Posts: 2,718
N.Ohio
Surprised your engine doesn't overheat with all that hardware blocking airflow into the radiator. I would go with a H.D. cooler downstream from the factory cooler in the radiator, feeding back into the transmission. I went with a Hayden and it was below 75 dollars and took an hour to install.

Last edited by Lubener; 06/21/17 01:19 PM.

The "thinking" man's friend.
Re: Shopping for a transmission cooler [Re: Lubener] #4437621
06/21/17 01:18 PM
06/21/17 01:18 PM
Joined: Jul 2015
Posts: 127
Alberta
BigJakeChevy Offline
BigJakeChevy  Offline
Joined: Jul 2015
Posts: 127
Alberta
Engine cooling is just as it was before.


2007 Silverado Classic 5.3L PPPP 10w30 455,000kms
Re: Shopping for a transmission cooler [Re: BigJakeChevy] #4437624
06/21/17 01:21 PM
06/21/17 01:21 PM
Joined: Jan 2011
Posts: 2,718
N.Ohio
Lubener Offline
Lubener  Offline
Joined: Jan 2011
Posts: 2,718
N.Ohio
In Alberta and north yes, go down to Texas and I have my doubts.There is a such thing as overkill

Last edited by Lubener; 06/21/17 01:22 PM.

The "thinking" man's friend.
Re: Shopping for a transmission cooler [Re: HawkeyeScott] #4437625
06/21/17 01:21 PM
06/21/17 01:21 PM
Joined: Oct 2014
Posts: 3,896
Utah
CKN Offline
CKN  Offline
Joined: Oct 2014
Posts: 3,896
Utah
Dex 6 is good for 275 degrees. This subject comes up every summer over on the truck boards. I tow all over the Roockies on the stock cooler as shown in "bigjakechevy" first post without issue.

Does it get above 200-yes. But it's nothing to worry about and cools right down on the down hill side.


On my last truck (2011 Silverdao)-I drained out the fluid at 50K-with half of those miles towing. And the fluid still looked nice and red.


Last edited by CKN; 06/21/17 01:22 PM.
Re: Shopping for a transmission cooler [Re: HawkeyeScott] #4437637
06/21/17 01:34 PM
06/21/17 01:34 PM
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Mount it like bigblackchevy did. Dont put those ziptie things through your radiator or condenser!


02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Shopping for a transmission cooler [Re: lexus114] #4437638
06/21/17 01:36 PM
06/21/17 01:36 PM
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,348
Deplorable in apple valley, ca
Originally Posted By: lexus114
wow nice set up. but does your AC still work good with those coolers in front of the condenser like that?
have you seen the new trucks? They stack all kinds of coolers in front of thev adiator these days.

Last edited by Chris142; 06/21/17 01:36 PM.

02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: Shopping for a transmission cooler [Re: HawkeyeScott] #4437643
06/21/17 01:39 PM
06/21/17 01:39 PM
Joined: Aug 2004
Posts: 1,364
VA
Rhymingmechanic Offline
Rhymingmechanic  Offline
Joined: Aug 2004
Posts: 1,364
VA
HawkeyeScott:

Does your Suburban have the factory trans cooler, as shown in the middle of the second photo above?

(It seems like BigJakeChevy is using both the factory auxiliary cooler and a new one, but not the in-radiator cooler.)

I have always heard good things about Tru-Cool coolers. I think the B&M-branded plate coolers are from the same manufacturer.

Tru Cool Trans Coolers

Your budget would cover a good cooler, but not a fan. Ram air will work once you're moving, though.

A pan with a drain plug would make maintenance easier. I would pay/save for that before an auxiliary fan.

Re: Shopping for a transmission cooler [Re: HawkeyeScott] #4437644
06/21/17 01:39 PM
06/21/17 01:39 PM
Joined: Oct 2004
Posts: 7,968
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline
Joined: Oct 2004
Posts: 7,968
Cincinnati, OH, USA
You can put more than that in front in front of the condenser & radiator & it'll still work, as long as it's all kept clean & bug-free. The GMC C3500 in my sig has an aux trans cooler AND a factory oil cooler in front of the condenser & radiator, A/C still works fine, it just kicks the fan clutch on occasionally on long uphill runs when towing in hot weather.


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: Shopping for a transmission cooler [Re: HawkeyeScott] #4437711
06/21/17 03:08 PM
06/21/17 03:08 PM
Joined: Sep 2014
Posts: 2,093
US-WA
Dyusik Offline
Dyusik  Offline
Joined: Sep 2014
Posts: 2,093
US-WA
Just ordered H7B from tru cool. Seemed to be best on paper/ web reviews.


95 Cherokee 190K DELO 10W30,XG8
07 IS250 100K Napa 10w30,FULL
04 YZF-R1 19K DELO 15w40,XG7317
99 HD XL1200S 20K VR1 20w50,1515
14 RX450h 32k PP MIX,NAPAG
Re: Shopping for a transmission cooler [Re: HawkeyeScott] #4437738
06/21/17 03:34 PM
06/21/17 03:34 PM
Joined: May 2010
Posts: 288
Alaska
AlaskaMike Offline
AlaskaMike  Offline
Joined: May 2010
Posts: 288
Alaska
Keep in mind that placing stuff in front of the radiator doesn't really block the airflow if there's some space (half inch or so, maybe more) between them. Does it reduce airflow? Sure, but usually not enough to worry about.

It would truly be a marginally designed factory cooling system to be rendered inadequate by a couple of mounting straps placed in front of the radiator!

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