Reference: 1968 Pontiac Service Manual Section 7E 1968 Pontiac Service Manual Section 7F 1968 Warranty & Flat Rate Manual Section N
Dealer Technical Bulletin 68-T-2 – Change in Spark Retard and Idle Speed to Provide Smooth Engine Operation – 1968 V-8 (A.T.)
Reference: 1968 Dealer Technical Bulletin 68-T-2A
Dealer Service Information Bulletin 68-I-85 – Vacuum Advance Valve Misdiagnosis
Dealer Service Information Bulletin 68-I-72 – 1968 Automatic Transmission Component Identification Charts
Reference: 1968 Pontiac Diagnosis Manual
Dealer Service Information Bulletin 68-I-66 – Starter Neutralizer Switch Usage, Identification and Adjustment – Column Shift or Console Shift – All 1967-68 Models Equipped with Hydra-Matic or Automatic Transmissions
Dealer Service Information Bulletin 68-I-61 – Revised 1968 Firebird 6-Cyl. Automatic Transmission Extension and Driveline Damper
Refer to 1968 Pontiac Diagnosis Manual Fig. 7F-3