aklim

I popped off the front fascia and found that I had a tranny cooler. So, the question is "Do I need the B&M one?".

I have a Transgo HD shift kit with Billet 1-2 and OD servos. Also have Dynatech LT headers with Granatelli Cold Air box. Will have electric fans installed and also have a tune done on the PCM to remove the abuse mode and Torque Management. The radiator is a 34 inch one with an oil cooler and a tranny fluid cooler in front of the condenser. Truck will be used for some spirited driving and towing of a 4500 lbs boat or a 2 place ATV trailer. The vehicle is an 02 GMC Yukon XL. TIA

SIERRA ON FIRE

with your driving style and towing, I would say that it would be a good idea. you wouldn't necessarily have to go b&m, unless you want, but any aftermarket cooler will do you better that the stocker, the bigger the better!

desTRUCKtive

You will always benifit from a tranny cooler, I would say if you are doing some heavy towing I would and if you have a torque converter I would also other than that you really dont need it if you already have one.

aklim

The problem is this. I already have a stock cooler. Also, I don't know what temps it is running. So, what would happen if, during winter, it cools it too much? Isn't that bad for the tranny also?

Wilde Racing

iTrader: (26)

Some of the B&M units have a bypass valve for cold oil. I don't know how well it works though.