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  1. 2

    TRANSMISSION Oil Cooler Retrofit

    Wow I am surprised at how much this "simple" project is kicking my assets... The pipe connections to the transmission are NOT the one bolt with an aluminum block that holds both tubes into the transmission...they are two separate tubes with the "horseshoe clip" and it does not look like I would...
  2. 2

    TRANSMISSION Oil Cooler Retrofit

    I found this video and it is helpful...I think the answer is that I got the wrong pipe assembly
  3. 2

    TRANSMISSION Oil Cooler Retrofit

    >If you decide on the OE route: 1 Transmission Oil Cooler 20880895 1 Inlet Pipe 25999420 1 Outlet Pipe 15779543 1 Retainer 15049288 Can someone PLEASE zap over a picture of how this looks both from the grille side and the engine compartment side? I received the above parts except the oil...
  4. 2

    TRANSMISSION Oil Cooler Retrofit

    Just ordered...THANKS
  5. 2

    What Is The Best Radiator Available???

    Just ordered one. THANKS for the advice!!!
  6. 2

    What Is The Best Radiator Available???

    Today in Arizona the OAT was a cool 95 and I was towing my EMPTY car trailer and the engine was running warm and the transmission temp was 225 F so I am considering replacing the radiator. The SUV has a new AC Delco radiator and when I installed it I noticed that the side tanks are reasonably...
  7. 2

    TRANSMISSION Oil Cooler Retrofit

    >and just to clarify the OEM lines are steel. Aluminum would be fragile in that size. THANKS for the clarification and keeping me honest. So I have seen there is a transmission cooler that is mounted in front of the radiator and condenser on a bracket. T...
  8. 2

    TRANSMISSION Oil Cooler Retrofit

    Thanks for the advice. Using hard (aluminum) lines is better than rubber or PTFE because the aluminum acts like a supplemental radiator and dissipates heat while the fluid is flowing through the lines.
  9. 2

    TRANSMISSION Oil Cooler Retrofit

    This is a similar question to my post on the ENGINE oil cooler retrofit... My 2007 GMC Yukon does not have an external TRANSMISSION oil cooler as it only has the radiator tranny oil cooler fittings. Has anyone installed an external transmission oil cooler? T Is there a kit available with...
  10. 2

    Engine Oil Cooler Retrofit

    My 2007 GMC Yukon does not have an engine oil cooler and the radiator does not have the oil cooler fittings (it only has transmission oil cooler fittings). Has anyone installed an engine oil cooler in a non-engine oil cooler car? The easiest way to do this would be to buy a new radiator with...
  11. 2

    What Is The Contraption Above The Oil Filter???

    THANKS guys!!! That is the answer I was looking for. The SUV does not have an oil cooler so I had no idea what it was (was thinking an oil pressure relief valve). I will replace the gasket and report back.
  12. 2

    What Is The Contraption Above The Oil Filter???

    Greetings, What is the device that is installed above the oil filter? It is bolted to the driver side of the engine with at least two bolts (that I can see). I ask because it is leaking oil and I need to replace the gasket. I already tried to tighten up the two visible bolts but that did not...
  13. 2

    Heater Hose Routing Schematic/ Gurgling Noise

    Hi All, I replaced the radiator and all rubber hoses on my 2007 Yukon 5.3 Liter. First I noticed that there was no heat coming from the heater when the engine was at idle. I swapped the heater core inlet/outlet hoses and now it warms up nicely HOWEVER I now notice a gurgling noise coming out...
  14. 2

    Does Anyone Have A Suggestion For A Transmission Cooler???

    I have a 2007 Yukon XL and it has a stock transmission cooler in the radiator right hand tank. I want to add a remote transmission cooler. Any suggestions for a make/model of cooler to add? I was hoping for a unit made specifically for this SUV but it does not look like there is one. If...
  15. 2

    Do ALL Aftermarket Radiators SUCK?!?!?!?!

    THANKS ezdaar!!!
  16. 2

    Do ALL Aftermarket Radiators SUCK?!?!?!?!

    Thanks, What is a pen radiator? I will look into the external transmission cooler
  17. 2

    Do ALL Aftermarket Radiators SUCK?!?!?!?!

    Hi All!!! New to the forum...hi!!! My 2007 Yukon 5.3 4WD got transmission oil in the cooling system (strawberry milk shake) and...FORTUNATELY...it did not get coolant in the transmission (no strawberry milkshake...just lower transmission fluid). So...no big deal...bought a Spectra...
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