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what are the best ways on increasing my tow rating?
GMTech48, can you let me know my gear ratio please? Here's the last 8 number from my VIN. 7J356656
Please and thanks
On a warm day driving up Highway 18 to Lake Arrowhead the trans temp will read 220 degress. That is without any trailer and no real load other than 3 passengers, two of which are 6 years old or younger. I've tried it with the A/C on and off and it makes no difference in trans temp. The factory transmission cooler on our Yukon is pretty small and before I tow anything I'll be swapping the factory unit out for a larger and hopefully more effective cooler.
Aloha