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2. Remove the detent lever/IMS retaining bolt (1) using a T27 TORX® bit and discard the retaining bolt. 3. Place a protective plate on the transmission case surface around the spherical pin (3). Remove the spherical pin (3) from the transmission case. 4. Slide the manual shift shaft (5) through the detent lever/IMS assembly (4) and through the manual shift shaft seal. 5. Rotate the detent lever/IMS assembly to disengage the park pawl apply assembly (2). Remove the detent lever/IMS assembly (4). Installation Procedure material on the threads. Do not reuse the retaining bolt. NOTE: DO NOT mar the transmission case surface around the NOTE: DO NOT twist the spherical pin when removing the pin from the
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 36: Detent Lever/IMS Retaining Bolt 1. Place the new detent lever/IMS assembly (4) in position in the transmission case. Rotate the detent lever/IMS assembly to engage the park pawl apply assembly (2). Reinstall the manual
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
2. Push the manual shift shaft (5) into the final position in the transmission case. 3. Install the spherical pin (3) into the transmission case that retains the manual shift shaft. 4. Install the detent lever/IMS retaining bolt (1) using a T27 TORX® bit. Tighten: Tighten the bolt (1) to 10 N.m (92 lb in). 5. Install the control valve assembly. Refer to Control Valve Body Replacement. 6. Perform the FastLearn procedure. Refer to FastLearn Procedure. TORQUE CONVERTER HOUSING BOLT SEAL REPLACEMENT Removal Procedure NOTE: Refer to Fastener Notice . IMPORTANT: The FastLearn, adapt, procedure must be performed. This can be done in 1 step using a scan tool. If this procedure is
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 37: Torque Converter Housing Bolts 1. Remove the torque converter from the transmission. Refer to Torque Converter Replacement. 2. Remove any of the 10 bolts (1), bolt heads shaded, where leakage at the bolt head is suspected. IMPORTANT: The bolts (1) have a removable seal under the flanged head.
2008 Chevrolet Silverado 1500 2008 TRANSMISSION Automatic Transmission - Allison - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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