I am 82 years old. I have had the misfortune of having at least 6 auto transmissions fail. Dirk is the first to do a perfect job no complaints.. They even diagnosed a problem that Ford and others had been unable to fit. Sent me to a diesel mechanic in there town of Oroville CA. That mechanic charged me 300.00 to fix it. Best money I ever spent as it woke up my truck and made it run like new. could not be more pleased and I got more than my moneys worth. Best trans shop in my 82 years. Thank You Dirk.