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Transmission Cooling

Here's what you need to know:

  • Heat KILLS transmissions.
  • AW4 is one of the strongest transmissions available.   No real reason to upgrade beyond the AW4 unless you are swapping for a v8 WITH a supercharger.    
  • The most affordable upgrade to protect your transmission is to add a supplemental transmission cooler.
  • Stock XJs usually come with a smaller tranny cooler but are insufficient after lifting, locking, and armor plating your XJ.
  • Buy the largest transmission cooler you can fit.    
    • 15" x 7-1/2" x 3/4"
    • B&M model #70268 - 11" x 7-1/4" x 3/4"

 
Excellent Reads:  
http://www.naxja.org/forum/showthread.php?t=1055170
http://jeepin.com/features/trannycooler
Transmission Temp Gauge Installs:
http://jeepin.com/features/tranny_temp_gauge
http://www.cherokeetalk.com/forum/f8/b-m-80212-trans-temp-guage-install-w-rant-included-14400/