Sierra Classic 2500 4WD V8-6.0L (2007)
18. Carefully lower the valve body from the transmission case while simultaneously disconnecting the manual valve link.
Ball Check Valves
19. Remove the seven valve body checkballs.
20. Important:
Some models do not have an outer spring. Note spring usage during removal.
Remove the accumulator cover bolts (58, 59).
21. Remove the 1-2 accumulator cover and pin assembly (57).
