GMC T Series 1994 Repair Manual page 468

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FRONT
A . 2 2 m m ( 7/8 -in ch )
B. 55 mm (21 /4-inch)
C. 4 0 m m (1 1 /2-inch)
D. 10 mm (3/s-inch) drill, 25 mm (1-inch) deep
E. 22 mm (7/e-inch) drill, 25 mm (1-inch) deep
F. Material: 50 mm x 200 mm (2 x 8-inch) lumber
Figure 23— Valve Train Components (7.4L Engines)
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B5267
CRANKSHAFT REMOVAL
Remove or Disconnect (Figure 39)
• Check the main bearing caps for location markings.
Mark the caps if necessary. The caps m ust be
returned to their original locations with the orienta­
tion arrow pointing forward during assembly.
1. Bolts (134).
2. Main bearing caps (132 and 133).