Dealer Service Information Bulletin 68-I-15 – Safe-T-Track Rear Axle Lubricant – First Generation Firebird (1967, 1968, 1969)

Bulletin 68-I-15 — Pontiac Motor Division Dealer Service Information Bulletin, Section 4, dated October 16, 1967. Attention: Service Manager.

Subject: Safe-T-Track Rear Axle Lubricant.

Short answer: Differential chatter on low-speed turns in Safe-T-Track equipped units is cured by a lubricant change; only Part No. 1050081 [Z] (Gp. No. 8.800) is approved — no substitute is recommended.

A number of cases of differential chatter on low speed turns have been reported in recent years on Safe-T-Track equipped units. Investigations prove that lubricant change is still the recommended fix for axle chatter.

It is imperative that only Part No. 1050081 [Z] (Gp. No. 8.800) lubricant be used. No other lubricant is recommended nor approved.

This is a transcription of the original dealer bulletin for easier reading and search. The complete original scan is shown below.

Content last modified: June 13, 2026 at 10:06 am

Categories: Dealer Technical Bulletins, Dealer Technical Bulletins - Section 04 - Rear Suspension, Differential, Prop Shaft, Suspension and Steering - All, Suspension and Steering - Suspension, Wheels, Brakes, and Axle - All, Wheels, Brakes, and Axle - Axle

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