AWD problems on 1999 Merc Mountaineer

does the AWD transmission etc have any problems after 100,000 miles? the vehicle has had no trouble yet & i am about to sell it to a friend, should I ? i don’t want problems with the truck or the friend.it has 105,000 miles now

If all the tires are, and have always been , a matching set of four… then without further input than you have here it sounds ok.

You, the seller, might just invest in a little peace of mind and have it checked over by your tech pre-sale.

selling a car to a friend is not a good idea. Do you want to wonder every time they call to be wondering what went wrong with the car now.