Fabio, do not take it as offense, please
-but can you tell me what an obstructed tranny cooler is good for?
You have a bull bar and aux lights in front of that cooler and expect temperature drop?
avoid the use of worm gear clamps.
Use constant tension clamps instead - a tranny coolant loss will cause expensive tranny replacement.
Before you will recognize the coolant loss your tranny is fried.