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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1663 (Automatic Transmission - 6L45/6L50/6L80/6L90 - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Control Valve Body Assembly Installation

Control Valve Body Assembly Installation

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Control Valve Body Assembly
GM1696440Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 NEW Fluid Pump Seal Assembly
2 NEW Fluid Pump Seal Assembly
3 NEW Center Support Fluid Passage Seal Assembly
Tip:  There are two different designs for the Center Support Fluid Passage Seal. The design for 6L45/50 (MYA/MYB) models utilizes tabs. The design for 6L80/90 (MYC/MYD) models does not have tabs.
4 Control Valve Body Assembly
CAUTION: The control valve body assembly needs to be lowered into place vertically, with no lateral movement. Lateral movement can damage the pass through connector pins and/or the oil transfer seals.

Tip:  Align the manual shift shaft position switch activator slide with the detent lever guide pin.
5 Bolts M5 x 73 (Qty: 6)
CAUTION: Refer to Fastener Caution .

Procedure: 
Tighten in the sequence shown.

Tighten:  8 N.m (71 lb in).


Special Tool: 
DT-48285:  Valve Body Torx Plus Socket (if applicable)
For equivalent regional tools, refer to Special Tools .