Reverse Planet Assembly

WARNING: This page is about a different car, the 2012 Ford F550 Super Duty and 2012 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The rocker clutch, reverse clutch and reverse planet assembly is not serviceable and must be replaced as a unit.

Inspect the rocker clutch, reverse clutch and reverse planet assembly.
- The pins and shafts in the planet assemblies should be checked for loose fit or damage. Use a new planet assembly if either condition exists.
- Inspect the pinion gears for damaged or excessively worn teeth.
- Check for free rotation of the pinion gears.
- Check for damage in the Overdrive (O/D) planet assembly.
- Check for damage of the rocker clutch assembly.
- Check for excessive wear of the reverse clutch plates.
  
  Fig 1: Locating Excessive Wear Of Reverse Clutch Plates
  Courtesy of FORD MOTOR CO.
Remove the No. 15 sun gear thrust bearing.

Fig 2: Locating No. 15 Sun Gear Thrust Bearing
Courtesy of FORD MOTOR CO.
Remove the snap ring. Disassemble the reverse ring gear and hub assembly. Inspect the components for damage. If damaged, install new components.

Fig 3: Locating Snap Ring
Courtesy of FORD MOTOR CO.
To assemble, reverse the disassembly procedure.
- Lightly lubricate the thrust washers with petroleum jelly to hold them in place during assembly.
- The tabs on the thrust washers must engage the slots on the reverse planet assembly when installed.
- The snap ring tips must be facing down toward the output shaft hub and fully engaged in the groove.