G 3500 1 Ton Van V8-454 7.4L (1989)
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Support the master cylinder.
4. Booster pushrod.
5. Nuts (4).
6. Hydro-Boost unit.
7. Gasket.
Install
1. Gasket
2. Hydro-Boost unit.
3. Nuts (4).
Tighten
Nuts to 29 N.m (21 ft. lbs.).
4. Booster pushrod.
5. Master cylinder.
6. Nuts (1).
Tighten
Nuts to 27 N.m (20 ft. lbs.).
7. Hydraulic lines.
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Bleed the booster.