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Look in the yellow pages under "Transmission Parts". Go to them and buy the proper cooler. They will show you the proper way to install the cooler. Do NOT use an auto parts store. (The top line is from the trans. to the rad., the bottom line is the return. Fluid flows downward in the radiator.)

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โˆ™ 2006-04-19 04:49:52
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Q: You want to install a transmission cooler on a 2000 gmc sonoma v6 automatic and want to know which trans line is the in and which is the out at the radiator?
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Related questions

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