One problem related to transmission gear slipping has been reported for the 1996 Ford Mustang. The most recently reported issues are listed below.
Was driving vehicle & felt transmission slipping. Had returned to dealer who refused to repair it. Later had cruise control on & vehicle suddenly accelerated. Applied brakes shut it off, but did not stop it. Turned vehicle off & restarted it. Vehicle has no air bags. Vehicle had a 1998 front repair done, but no accident had happened.