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Old 11-18-2002, 03:54 PM
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Post transmission oil cooler

Is a trans. oil cooler necessary on my 350 sbc or can I do without one?

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Old 11-18-2002, 05:47 PM
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heat is the main reason why transmissions fail. A cooler is not necessary on a stock tranny but it will probably extend the life of the transmission. On a modified trans with stall converter and shift kit I would not even think about not having one.
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Old 11-18-2002, 06:52 PM
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Another reason to run the "cooler" in the radiator is to get the trans up to running temperature quickly to prevent condensation and sludge formation. That is why manufacturers put tieh heat exchanger in the engine radiator instead of in a cooler air stream. Too cold is bad like too hot.
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Old 11-18-2002, 07:27 PM
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i was just gonna say who the hell needs 'em/ but now i are smarter.
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Old 11-20-2002, 09:07 PM
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Instead of buying an expensive tranny cooler you might want to try this trick for street rods. Just stop at a local parts store and purchase a approximately 3 foot long section of metal fuel or brake line tubing in the correct size for the cooler line fittings of your particular transmission. I know NAPA carries these pre-fitted lines. Using a tubing bender, bend the tubing in a "U"-bend from the outlet fitting back to the inlet fitting and form the tubing to go between the transmission and the vehicles frame where there is some airflow when the vehicle is moving down the road. Auto transmissions that are in a street car and not used for towing don't really need a big trans cooler. I have done this on numerous transmissions and never had a heat related trans failure.
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Old 11-21-2002, 04:05 AM
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I have run motorcycle oil coolers in place of aftermarket trans coolers. I had them left over from my shop and used them.
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Old 11-21-2002, 12:27 PM
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Why make your own oil cooler? The one on my lincoln is for heavier cars and was only about 30 bucks.
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