P3 Planetary Ring Gear Inspection
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, 2003 Chevrolet Cab & Chassis Silverado, and 2002 GMC Sierra. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Clutch plate movement can cause notching on external splines of P3 ring gear.
Measure any notching on the external splines of the P3 planetary ring gear (dimension "A"). See Figure. See PLANETARY GEAR MODULE SPECIFICATIONS table under TRANSMISSION SPECIFICATIONS. Replace P3 planetary ring gear if it does not meet specifications.