Dealer Service Information Bulletin 68-I-37 – 1968 Tempest Rear Brake Drums
Bulletin 68-I-37 — Pontiac Motor Division Dealer Service Information Bulletin, Section 5, dated January 31, 1968. Attention: Service Manager.
Subject: 1968 Tempest Rear Brake Drums.
Short answer: Some early-production 1968 Tempests were built with Kelsey-Hayes rear brake drums stamped “F” instead of the specified “KH” identification. Future drums will use the combined code “KH-F.” All three codes (“KH,” “F,” or “KH-F”) represent acceptable Kelsey-Hayes drums — a variation between right and left drums is not a concern.
Pontiac Engineering has advised that certain early-production Tempests were built using Kelsey-Hayes rear brake drums coded with identification letter “F”, rather than the specified identification “KH”.
Future Tempest rear drums manufactured by Kelsey-Hayes will incorporate the code letters “KH-F” as an optional identification.
Since Kelsey-Hayes drums with any one of these codes (“KH”, “F”, or “KH-F”) are installed in production, there should be no cause for concern regarding the variation of code between right and left rear drums.
Content last modified: June 13, 2026 at 10:06 am
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