Dealer Service Information Bulletin 68-I-58 – Turbo Hydra-Matic Transmission Pump Assembly Gear Clearance Revised
Bulletin 68-I-58 — Pontiac Motor Division Dealer Service Information Bulletin, Section 7E, dated April 18, 1968. Attention: Service Manager.
Subject: Turbo Hydra-Matic Transmission — Pump Assembly Gear Clearance Revised.
Short answer: The allowable pump body face-to-gear face clearance has been widened; revise your 1968 Pontiac Service Manual to reflect the new maximum of .0035″ (the minimum remains .0008″).
Refer to your 1968 Pontiac Service Manual, Section 7E, page 7E-30, item No. 2. The sentence currently reads:
“Check pump body face to gear face clearance, should be .0008″–.0015″ (Fig. 7E-74).”
Revise this sentence to read:
“Check pump body face to gear face clearance, should be .0008″ min.–.0035″ max. (Fig. 7E-74).”
Refer to 1968 Pontiac Service Manual, Section 7E, page 7E-30
Content last modified: June 13, 2026 at 10:06 am
← Frequently Asked Questions
