Checking Procedure

WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, and 2002 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Tools required: Gauge Pin (J-21370-10), and Band Apply Pin Checking Tool (J-38737).

Place the rear servo pin gauge in the servo bore. See Fig 1.
Position the band apply pin checking tool over the bore with the hex nut facing the parking pawl linkage. Tighten the band apply pin checking tool with the 2 rear servo cover bolts to 18 ft lbs. (24 N.m). See Fig 2.
Ensure the gage pin moves freely in the tool and the pin bore.
In order to determine the correct pin length, tighten the nut on the gauge to 25 ft lbs. (34 N.m). Select the correct band apply pin length. See Fig 3.

Fig 1: Identifying Band Apply Pin Gauge

Courtesy of GENERAL MOTORS CORP.

Fig 2: Checking Band Apply Pin Length

Courtesy of GENERAL MOTORS CORP.

Fig 3: Band Apply Pin Selection Chart

Courtesy of GENERAL MOTORS CORP.