731 ◑ Single-source

Pontiac · Regular Production Option

Safe-T-Track axle (division sales code)

Years 1967–68 Models 2

Also described as Safe-T-Track axleHD air cleaner

Documented applications

Firebird / Trans Am →

• 1967 ◑ Single-source
• 1968 ◑ Single-source

  Was Safe-T-Track in 1967 — renumbered

Full-Size — Catalina / Bonneville →

• 1967 ◑ Single-source

  Same caveat (renumbered in 1968)

This page aggregates every documented appearance of 731 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.