Trans Cooler or Other Mods

Discussion in 'Towing & Hauling' started by blackfoot, Jun 29, 2015.

  1. blackfoot

    blackfoot Member

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    I talked to a mechanic about getting the gears changed and he said he would recommend just changing the stock tires out for 245's or whatever would get me down to 30" tires and that would effectively give me what I'm looking for. Sound right? He said he'd love to charge me to change the gears but would recommend the tire swap to save money.
     
  2. Lostneye

    Lostneye Full Access Members

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    Tire size will affect the final drive and smaller tires will effectively lower the final ratio. Again depending on how you use the vehicle this may or may not work for you. Smaller tires will probably negatively affect the ride, will definitely lower ground clearance, and will make it more difficult to navigate off road. You should also be aware of load rating of a smaller set of tires. And the speedo will be off(gears would affect this as well) newer vehicles can be corrected via a tune.

    If those don't seem like real issues go ahead.
     
  3. HavasuMike

    HavasuMike Full Access Members

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    What should the transmission temperature be when towing? (range) I can watch the temp, but don't know what is too hot.
     
  4. johnboneske

    johnboneske Full Access Members

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    I tow a 7600GVWR travel trailer with my 2003 2 valve 5.4 and in the dead of summer I have never seen more than 210° in trans temps. Get yourself the Torque Pro app for $10 and a wireless dongle off Amazon for $10 too. You can monitor everything you want, and it does CEL light stuff too...
     
  5. johnboneske

    johnboneske Full Access Members

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    If you get to 220 for more than a few minutes back off, you don't ever want to get 230+. 210's or lower your just fine.
     
  6. richs fishes

    richs fishes Full Access Members

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    I could not get Torque Pro to display trans temperature correctly. It was always exactly the same temp as the coolant. I found the Forscan Lite app much more useful!
     
  7. johnboneske

    johnboneske Full Access Members

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    huh, mine has always worked right. There are two different trans temps readouts for it, you have to select the right one
     
  8. richs fishes

    richs fishes Full Access Members

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    yeah I found 2 options and they always read the same which was identical to the coolant temp. For a while i figured maybe the trans cooler right in front of the radiator somehow made the temp of both fluids the same but once I tried Forscan I saw vastly different trans temp numbers which made much more sense!
     

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