Chevrolet 10 Series 1970 Service Manual page 242

BRAKES 5-4
TYPE FR3A REAR BRAKE
F ig . 6 —W agner Type "F R -3 A " Rear and "F A " Front
S e lf A d ju s tin g Brake
TYPE FA FRONT BRAKE
DUO-SERVO
TWINPLEX
F ig . 7 — D uo-S e rvo and T w in p le x W hee l C y lin d e rs
1. Push Rod 4 . Piston Cup
2. Boot
5. Spring
3. Piston
1 2
TYPE "FR-3'
F ig . 8 —W h e e l C y lin d e rs Used w ith Types " F " , " F A " ,
" F R -3" and ' ' F R -3 A "
1. Boot
4. Piston Cup
2. Brake Shoe
5. Cup F ille r
G u id e
6. Piston Spring
3. Piston
7. C y lin d e r
6. Housing
7. S pring
Brakes
8. Brake Shoe
A n c h o r S lot
9. Push Rod
CHEVROLET TRUCK SERVICE MANUAL