JL9 (X / AH) ● Confirmed

Cadillac · Regular Production Option

Track Master rear-wheel anti-skid control

Years 1971–76 Models 1

Documented applications

Eldorado →

• 1971–76 ● Confirmed

  Eldorado-only 1971–72, wider later

This page aggregates every documented appearance of JL9 (X / AH) in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.