F 350 4WD Pickup V8-351 5.8L VIN H EFI (1997)
Countershaft: Testing and Inspection
Countershaft Tapered Roller Bearing Preload
1. Using two 10 mm hex screws, attach Dial Indicator with Bracketry TOOL-4201-C and Clutch Housing Alignment Adapter T75L-4201-A to the
PTO opening in the case as shown in the illustration. Position the dial indicator gauge to the support in such a way that the measurement bar rests
against the flat face of the fourth speed helical gear on the countershaft cluster gear.
NOTE: Countershaft is serviced by Ford as an assembly only. Individual countershaft components will not be serviced.
2. Set the dial indicator needle to zero.
NOTE: Countershaft thrust washer under front bearing race must be removed prior to preload measurement.
3. Insert pry bars through each of the two power take-off openings and position them beneath the 4th speed helical gear on the countershaft cluster
gear. Pry up on the countershaft cluster gear.
4. Like the preceding shaft check, the preload should be 0.02 to 0.11 mm (0.00079 to 0.00434 inch) after installing the thrust washer.
