saving tranny

Howdy folks,

I had planned on selling my dad's SVX for my mom after he passed recently. I wanted to keep it for sentimental sake but thought it wouldn't be practical with all the cars we have around the house. Luckily, lo and behold, my wife had to drive it after our son needed to take her '97 Cherokee since his '90 legacy wagon (230k) was waiting on a part for repair. My wife calls me at work on her cellphone and says she absolutely loves the car, can't believe how smooth it is, and just loves all the gadgets, toys, and very comfortable seats!!!! Now, she says sell the Cherokee. With 150k miles and the 2nd owner i'm worried about the tranny. How do i tell if there is the external cooler added? If not what is the best way to add the tranny cooler. Also, what would you suggest for new front rotors and brake pads.

thanks much,

Tracy