GMC 1986 P-Truck Service Manual page 455

1. Nut
2. Master Cylinder
3. Hydro-Boost
4. Nut
7. Washer
8. Washer
Figure 30—P 30 (42) Hydro-Boost Replacement
9. Release the parking brakes.
P 30 (32) MODEL
Remove or Disconnect (Figure 32)
• Apply the vehicles parking brakes.
1. Hydraulic lines from the booster.
2. Nuts (12) and washers (13).
3. Master cylinder (2).
• Support the master cylinder.
4. Brake pedal rod, refer to " Brake Pedal Rod
Replacement" in this section.
5. Nut (10) and washer (11).
• Bolt (16).
6. Nut (14) and washers (15).
• Bolt (18).
7. Nuts (12) and washer (13).
• Bolts (17).
8. Hydro-Boost unit (3).
E
Install or Connect (Figure 32)
NOTICE: For steps 2, 3, 4, and 7 see "Notice"
on page 5-1 of this section.
1. Hydro-Boost unit (3).
2. Bolts (17).
BRAKES 5-35
B-07809