Mustang Cobra V8-281 4.6L DOHC VIN V MFI (1997)
^
Backlash correct. Thinner pinion position shim required.
^
Backlash correct. Thicker pinion position shim required.
^
Pinion position shim correct. Decrease backlash.
^
Pinion position shim correct. Increase backlash.
4. Pinion and ring gear movements can be adjusted to obtain satisfactory roll patterns as follows:
a. Decreasing backlash moves the ring gear closer to the pinion.
^
Drive pattern (convex side of gear) moves slightly lower and toward toe.
^
Coast pattern (concave side of gear) moves lower and toward the toe.
b. Increasing backlash moves the ring gear away from the pinion.
^
Drive pattern moves slightly higher and toward the heel.
^
Coast pattern moves higher and towards the heel.
c. Thicker pinion position shim with the backlash constant moves the pinion closer to the ring gear.
^
Drive pattern moves deeper on the tooth (flank contact) and slightly toward the toe.
^
Coast pattern moves deeper on the tooth and toward the heel.
d. Thinner pinion position shim with the backlash constant moves the pinion farther from the ring gear.
^
Drive pattern moves toward the top of the tooth (face contact) and toward the heel.
^
Coast pattern moves toward the top of the tooth and slightly toward the toe.
