This bulletin applies to 2015-2019 Ford Mustang GT350/GT350R vehicles. A hesitation/surge may be experienced with no DTCs present. This may be accompanied by an inoperative cruise control system. This may be due to a transmission output shaft flange nut that has become loose, allowing the output shaft tone ring to move in relation to the output shaft, causing an erroneous signal. To resolve the condition, replace the output shaft flange.
P/N PART
4R3Z-7B340-AA..............output shaft flange nut
FR3Z-4B496-B................bolt and washer M10 x 1.5mm
N800594-S101...............bolt, M12 X 1.75 X 27mm
W717822-S439..............bolt, M10 x 19mm
TA-25-B..........................Motorcraft Threadlock and Sealer
