Tranmission cooler question, models, when to install?

loosvelt · **Posted:** Mon Jun 16, 2008 1:49 am

I want to buy an auxiliary transmission cooler. Can anybody suggest a model that will give me the most bang for my buck? Also when is the best time to install one? Around 30k miles when I drain the fluid? Also why am at it should I get some of HD hoses All J’s sells?

jsc7002 · **Posted:** Mon Jun 16, 2008 1:59 am

I bought a Hayden for about $40 from my local auto parts store, although im being lazy and havent installed it yet

sleeve84028 · **Posted:** Mon Jun 16, 2008 7:53 am

I think you would buy the cooler based on your needs [size, cooling capacity and attachment methods] They are a great idea and the sooner you install it the better.

tjkj2002 · **Posted:** Mon Jun 16, 2008 8:19 am

I installed a Hayden cooler also,one ment for a 28,000lbs GVWR RV,did it when I had about 200 miles or so on the KJ,paid like $30 for it.AS far as the hoses can't tell you,I change my hoses about every 30,000 miles anyway along with the t-stat and the coolant(about every 3 years).

Joe Romas · **Posted:** Mon Jun 16, 2008 9:31 am

If your in a climate where it gets cold you should get one with a thermostat on it :wink:

Some transmissions like the 545rfe on the crd don't allow locking the torque converter untill the transmission reaches operating temperature

loosvelt · **Posted:** Mon Jun 16, 2008 12:08 pm

Thx guys, why I am at it should I get a power steering cooler. Anybody have problems with the power steering overheating on a rough trail?

I am trying to prevent problems before they start. I plan on wheeling a little harder this summer.

sleeve84028 · **Posted:** Mon Jun 16, 2008 10:24 pm

I don't do much trail riding, but I do a lot of towing and haven't ever had a problem with the power steering fluid. I know that I have the extra cooler or what ever, but I don't think it's been really benificial in my situation. I would worry about the transmission cooler first and then later down the road you can do the PS cooler if you think you need it.

Tranmission cooler question, models, when to install?

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