Ford 2003 Mustang Workshop Manual page 2544

SECTION 307-01: Automatic Transaxle/Transmission
DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIES
Torque Converter Impeller to Pump Stator Interference
Check
1. NOTE: Front pump support may remain in front pump support and gear during this test.
Position the front pump support with the splines up.
2. Mount the torque converter on the front pump support with the splines on the one-way clutch
inner race, engaging the mating splines of the front pump support.
3. Hold the front pump support stationary and rotate the torque converter counterclockwise.
The torque converter should rotate freely with no signs of scraping.
If there are signs of scraping, install a new or remanufactured torque converter.
2003 Mustang Workshop Manual