Aurora — G-body (1995–1999) → 1998 ✓ Factory-verified internal ⛭ GM factory document — 1998 oldsmobile aurora rpo code list, p.1.
Eighty Eight (LSS) — H-body (1992–1999) → 1998 ✓ Factory-verified internal ⛭ GM factory document — 1998 oldsmobile eighty eight rpo code list, p.1.