TRANSMISSION SLIP WHEN ACCELERATING MOSTLY WHEN POWER IS NEEDED(PASSING ANOTHER VEHICLE)FORCED TO BRAKE HARSHLY TWO TIMES WHILE PASSING ANOTHER VEHICLE. ON OCCASION,TRUCK FEELS LIKE IN NEUTRAL AFTER STOPPING AT A LIGHT FOR ABOUT 4-5 SECONDS. ON OCCASION TRUCK STALLS WHEN PUTTING INTO DRIVE. TRANSMISSION HAS A LEAK BUT ALWAYS CHECKED LEVEL AND TOP UP IF NEEDED. *TR