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Old 01-21-2008, 04:52 PM
If it aint a CAT itsa DOG

 

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tranny cooler swap

Does anyone have a write up on how to swap out the stock 7.3, 4r100 trans cooler for a 6.0 trans cooler or even a different one? I can't seem to figure out how to get to the trans cooler without removing either the radiator or the intercooler.
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Old 01-22-2008, 04:37 AM
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This is a very easy swap. Pull the rubber cover in front of the degas bottle. This will open up the area where the cooler is located. Pull the one bolt holding the drivers side of the condensor, this is on the top corner, once this bolt is removed you can flex the condensor out of the way. Remove the grill, four bolts on top and a screwdriver in the clips at the bottom will free it. I also pulled my hood latch to give me more room. With grill removed you can reach the 4 bolts that hold the cooler in place. Cut the 3/8" line as close to the hardline on the frame ( for 99/2000 trucks), or as close to the exit on the rad as possible and the return line cut it about 6-8" from where it meets the hardline on the frame. Pull old cooler out from the top, warning, place a rag over the top of the condensor or you will look like you were in a cat fight. Now insert the new cooler and replace mounting bolts. Route new hoses and use the brass adaptors to plumb them back into the 3/8 line. Fasten everything back up, add another quart to 1 1/2 quarts and you are good to go. Took me about an hour taking my time.
NCH
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Old 01-22-2008, 01:36 PM
If it aint a CAT itsa DOG

 

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Thanks NC! Well it doesn't sound so bad after all. Now i need to decide which trans cooler to go with.
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Old 01-22-2008, 02:21 PM
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6.0 cooler should do you just fine
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Old 01-22-2008, 03:45 PM
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I’m not sure how big the 6.0 cooler is or how much it is but I got a Trucool 40K tranny cooler for my truck and mounted it to the front bumper and plumed it in series with the factory cooler. Cost about $120 and made a huge difference. Years later when my tranny finally gave out I put a new tranny in and because of warranty on the tranny I got another trucool 40K cooler that has the brackets to fit in place of the factory cooler so I now got two 40k coolers in series.
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