2009 Subaru legacy awd

Selling as is.....bought it recently...201,000km on car 50,000km on new engine..inside great, brakes great, steering great, but transmission slips....i have been looking on subaru forums, and it can possibly be small fix, if you know your subaru's than you might see it as an opportunity...has summer & winter tires, large sunroof.
Please call or text Doug @ 519.531.0085
Thank u