For 1982-89 2.3-3.0L 4-cyl, 85-130 Hp | 3.8-4.3L V6, 160-170 Hp | 5.0-7.4L V8, 185-385 Hp GM engines.

also crosses with:
Sierra: 18-7086
GLM: 76120
Mallory: 9-37610