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Thread: Do I need an aftermarket Tranny Cooler?

  1. 08-24-2005 09:01 PM #1
    aklim
    aklim is offline Member
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    I popped off the front fascia and found that I had a tranny cooler. So, the question is "Do I need the B&M one?".

    I have a Transgo HD shift kit with Billet 1-2 and OD servos. Also have Dynatech LT headers with Granatelli Cold Air box. Will have electric fans installed and also have a tune done on the PCM to remove the abuse mode and Torque Management. The radiator is a 34 inch one with an oil cooler and a tranny fluid cooler in front of the condenser. Truck will be used for some spirited driving and towing of a 4500 lbs boat or a 2 place ATV trailer. The vehicle is an 02 GMC Yukon XL. TIA
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  2. 08-24-2005 10:19 PM #2
    RedHeartbeat
    RedHeartbeat is offline WTH JUST HAPPENED?
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    It never hurts to have the trans cooler. The one you have is good since it is part of GM's trailer package if it came on your truck. The standard B&M is just an aftermarket equal to the factory one.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
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  3. 08-25-2005 05:59 AM #3
    1bad02silverado
    1bad02silverado is offline Member
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    I would have one on it. It will extend the life of your trans a lot longer. Mine goes through the radiator one and another one I installed, but I have a stall in it to. You would definately need one then.
    ECSB 02 Silverado, Supercharged 402ci,224/230 .581/.588, Nelson tune, built 4l60e, 4.10's, TT3000, on 20's.
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  4. 08-25-2005 12:36 PM #4
    Bad_Apple
    Bad_Apple is offline Senior Member
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    Yeah you can get by with your stocker for now, but later down the road if you ad a stall you will need one a lot bigger if you want it to last. Tranny Cooler are just added insurance for that trans. Cooler you can keep it less problems your going to have.
    2002 Red Chevy RCSS (engine mods)- 05 5.3L, Procharger P-1SC 9lb.pulley, 80mm BBK TB, TB By-Pass, 38lb. Inj., AlkyControl Meth Kit, ASM L/T's, Magnaflow X-pipe, Borla's, FLT Level 5 4L65e, PI 3000 Stall, B&M Tranny Cooler, 3:73's, G-80, E-Fans, 160' Thermo. Custom Built Intake with K&N. WideBand 02 Sensor, DIXIE TUNED.
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  5. 08-25-2005 12:40 PM #5
    aklim
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    So just to clarify, I have the one that goes thru the radiator and then to an external cooler. What you are saying is that I should remove the stock external one and replace it with a B&M External cooler?
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  6. 08-25-2005 12:57 PM #6
    RedHeartbeat
    RedHeartbeat is offline WTH JUST HAPPENED?
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    link Here's what I will be running. It's in the garage just waiting for me to install.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
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  7. 08-30-2005 11:23 PM #7
    csherma1
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    Originally posted by aklim@Aug 25 2005, 10:40 AM
    So just to clarify, I have the one that goes thru the radiator and then to an external cooler. What you are saying is that I should remove the stock external one and replace it with a B&M External cooler?
    No - keep the trans fluid running thru the rad first - then out to a trans cooler - then back to your transmission.
    2003 LS 2wd ECSB 5.3 3.42 locking,
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    TB Bypass, ASP pulley, B&M 24k SuperCooler, Nelson Tune.
    Hotchkis 2"/4" - IAS Rear Shocks
    6,700 miles
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