Sierra 1500 4WD V8-6.0L VIN U (2006)
18. Remove the manual 2-1 band servo (1).
19. Remove the servo piston cushion spring (2).
20. Remove the manual 2-1 band servo piston pin retainer ring (4).
21. Remove the manual 2-1 band servo piston pin (1).
22. Remove the manual 2-1 band servo piston seal (2).
23. Remove the 8 checkballs (9 for some models).
Important: Do not use a magnet in order to remove the checkballs. Using a magnet to remove the checkballs may magnetize the checkballs,
causing metal particles to stick.
Installation Procedure