Express 3500 V8-6.0L VIN U (2004)
42. Install the rear sun gear.
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The shoulder side of the gear faces up.
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Do not rotate the differential pinion gears.
43. Temporarily install the rear output shaft to the planetary differential and the rear sun gear.
44. Rotate the rear output shaft three or four revolutions to rotate the planetary differential pinion gears. If properly aligned, the pinion gears will
rotate freely, there will be no binding.
45. Remove the rear output shaft without disturbing the rear sun gear.
46. Install the shift fork shaft spring.
