1968 Gmc S6500 Recalls

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NHTSA Campaign Number: 69V039000
Manufacturer: GENERAL MOTORS LLC
Date of Owner Notification: April 2nd, 1969

Recall Notes:
POSSIBILITY THAT SEAL ON PISTON IN MASTER BRAKE CYLINDER MAY, AFTER EXTENDEDUSAGE, ALLOW BRAKE FLUID TO PASS SEAL PERMITTING BRAKE PEDAL TO BE PUSHED TOFLOOR IN A SLOW GRADUAL STOP OR UPON THE FIRST AP- PLICATION OF BRAKES AFTERVEHICLE HAS BEEN STANDING FOR A PERIOD OF TIME.IS ALSO A POSSIBILITY THATINNER LINER OF VACUUM HOSE WHICH CONNECTS TO BRAKE VACUUM BOOSTER MAY COLLAPSE,CAUSING LOSS OF POWER BRAKE ASSIST.(CORRECT BY INSTALLING NEW PARTS IN BRAKEMASTER CYLINDER AND MODIFYING VACUUM HOSE ROUT- ING.)

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NHTSA Campaign Number: 70V016000
Manufacturer: GENERAL MOTORS LLC
Date of Owner Notification: February 18th, 1970

Recall Notes:
POSSIBILITY THAT DURING OPERATION STEEL BRAKE LINE AT REAR AXLE COULD CHAFE ONLEFT REAR SHOCK ABSORBER, AND THAT FRONT BRAKE HOSES ON SCHOOL BUSES MAYCONTACT TIRE, SHOCK ABSORBER OR STEERING ARM.CONTINUED CHAFING COULD WEARHOLE IN HOSE OR LINE AT POINT OF CONTACT, CAUSING LOSS OF HYDRAULIC BRAKEFLUID.(CORRECT BY INSPECTING AND RE-ROUTING STEEL LINE AND ADDING ADDITIONALCLIP TO HOLD HOSE.)

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NHTSA Campaign Number: 68V019000
Manufacturer: GENERAL MOTORS LLC
Manufactured Begin Date: January 1st, 1967
Manufactured End Date: January 1st, 1968
Date of Owner Notification: March 11th, 1968

Recall Notes:
POSSIBILITY AIR BRAKE HOSES WHICH EXTEND FROM THE FRONT WHEEL BRAKE CHAMBERS TO THE FRAME RAIL COULD BE IMPROPERLY ROUTED OR OF INCORRECT LENGTH.IN EITHER SITUATION, THE BRAKE HOSE MAY CONTACT THE FRONT TIRE OR SHEET METAL ON A RIGHT-OR LEFT-HAND TURN.THE BRAKE HOSE, IF CONTACTED REPEATEDLY, WILL CHAFE AT THE CONTACT POINT RESULTING IN AN AIR LEAK.THIS CONDITION COULD EVENTUALLY CAUSE A RUPTURE OF THE BRAKE HOSE RESULTING IN A LOSS OF BRAKING ACTION.(CORRECT BY REROUTING HOSES OR REPLACE IF INCORRECT LENGTH.)