As the rate of sales begins to drop, fewer Mustangs are produced. Both the performance geared Cobra option and the four-cylinder turbo also diminish. The Traction-Lok rear axle’s debut allows drivers to experience less wheel hop.
1FA - Ford Motor Co.
B - Restraint system (B-active belts)
P - Passenger car
10 - Body code (10/14 - 2dr sedan, 15 - 3dr, 12 - 2dr Ghia, 13 - 3dr Ghia)
A - Engine code
6 - Check digit (varies)
B - Year (B - 1981)
F - Plant (F-Dearborn)
000001 - Consecutive unit number
Location: Stamped on the plate which is riveted to the driver's side of the
dash, visible through windshield; the certification label is attached to the rear face of the driver's door.