C 1500 Truck 2WD V8-350 5.7L VIN K TBI (1995)
Fig. 8 Exploded View Of Delco-Moraine Tandem Diaphragm Brake Booster Components
Brake Booster Holding Fixture
DISASSEMBLE
1. Remove boot, silencer, vacuum check valve, grommet and front housing seal, Fig. 8.
2. Scribe a line across front and rear housing, then install brake booster to brake mounting fixture tool No. J-23456 or equivalent, Fig. 6.
3. Turn fixture handle to unlock housings.
4. Remove return spring, power piston assembly and power piston bearing from rear housing, Fig. 8.
5. Remove piston rod, reaction retainer and power head silencer.
6. Remove power piston and pushrod assembly as follows:
a. While holding the pushrod down against a hard surface, grasp outside edge of diaphragm support and diaphragm.
b. Use a slight force to dislodge diaphragm retainer.
7. Remove primary diaphragm and primary support plate from housing divider.
8. Remove primary diaphragm from primary support plate.
9. Remove secondary diaphragm and secondary support plate from housing divider.
10. Remove secondary piston bearing from housing divider.
11. Remove secondary diaphragm from secondary support plate.
12. Remove reaction body retainer, reaction body, reaction disc and reaction piston from reaction body.
13. Remove air valve spring and reaction bumper from end of air valve pushrod.
14. Remove retaining ring from air valve pushrod assembly.
15. Remove air valve pushrod assembly by inserting a screwdriver through the pushrod eyelet and pulling pushrod assembly straight out.
16. Remove filter, retainer and O-ring from air valve pushrod assembly.
