Chevrolet Silverado / GMC Sierra. Service manual - part 397
Fig. 33: Upper Oil Pan (Rear View)
Courtesy of GENERAL MOTORS CORP.
Upper Oil Pan - Rear View
Upper Oil Pan - Side View
Fig. 34: Upper Oil Pan (Side View)
Courtesy of GENERAL MOTORS CORP.
Upper Oil Pan - Side View
Service
Hole
Location
Thread
Size
Drill
Counterbore
Tool
Stop
Collar Tap Driver Insert
Drill
Depth
(Max)
Tap
Depth
(Min)
mm (in) mm (in)
1
M 12 x
1.75
-856
-857
N/A
-858
-859
-855
22 0.866 16 0.630
Service
Hole
Location
Thread
Size
Drill
Counterbore
Tool
Stop
Collar Tap Driver Insert
Drill
Depth
(Max)
Tap
Depth
(Min)
mm (in) mm (in)
1
M 6 x
1.0
-201
-202
N/A
-203
-204
-205
17 0.669 13 0.512
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado