Sierra Classic 2500 4WD V8-6.0L (2007)
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 shift shaft (5) through the manual shift shaft seal and through the detent lever/IMS assembly (4).
2. Notice:
Refer to Fastener Notice in Service Precautions.
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(r) bit.
Tighten the bolt (1) to 10 Nm (92 inch lbs.).
5. Install the control valve assembly. Refer to Control Valve Body Replacement.
6. Important:
The FastLearn (adapt) procedure must be performed. This can be done in one step using a scan tool. If this procedure is not done, the TCM's
adaptive values will be at the settings that it learned for the old components. and will be in slow adaptive mode. Under these conditions, it would
take an unacceptably long time for the adaptive values to converge to levels suitable for the new transmission.
Perform the FastLearn procedure. Refer to FastLearn Procedure.
