I wanting to install a second trans cooler. I now have a B&M 19000GVW cooler and I want to install a second cooler, 16000GVW, and totally discontinue using the radiator. Sound like a good idea or no? Gets pretty hot here in the summers

Err cooler is better, it seems like overkill but I guess it can't hurt.

Yeah, But I am going to do everything in my power to keep that trans going another 75,000 miles or more, even if I have to buy 6 coolers and change the trans oil monthly. I get paranoid as hell when it comes to worrying about my car breaking down. I figured two 19000GVW coolers would be major overkill, so a 19000 and 16000 is what I am planning.

But if the tranny doesnt get to the correct operating temp the you do more harm than good.

I wouldn't worry about the summer heat. It'* not going to make that trans super hot. One cooler should do the trick.

i havnt had any problems with teh summer weather up here

It'd be really difficult to cool the trans to the point where it would actually do damage. The only problem would be when it is extremely cold outside it'll take longer to get to operating temps and those are not good times for the trans. If you're going to do this you should let your engine run for a minute or two before driving around in the winter. Other than that its like using windex to put out a forest fire, you couldn't over cool it

Cool, if I do it I will probably cover one during the winter. My main concern is cooling it during the summer.

If you intend to do this...Maybe a valve on the supply side of the second cooler would be a good idea also...so in winter you can bypass extra cooler...My SSEi has radiator and a tranny cooler by the factory...BUT I too intend to install dual coolers...not because of the summer heat, but because of my driving habits...

If you are that worried about your trans lasting, and don't want to change your driving habbits then why not go to synthetic trans fluid. It not only handles the temp better, it also has other better qualities about it that would do your trans more good than a second cooler It is also less work to add