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Just go to a radiator shop and get a new stocker or you can ask them if there is a thicker one with the same profile - same connections including for the auto trans heat exchanger - you need that to bring the auto up to optimum operating temps asap.

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there are numerous threads on here about this very arguement. we dont live in siberia and it doesnt get to minus 20 over night and if you have an engine issue were your temp is higher than normal you will shorten the life of your auto trans. if your worried about it freezing up then mount it behind the radiator.

according to extreme offroad 4x4 guys that use auto trans, they use external coolers and i also saw a graph with trans oil temp vs trans life in hours in a mates 4X4 magazine and the hotter the trans oil temp the less life you will get out of the box.

read some threads and make up your own mind

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