Catalog: Hooker Headers Exhaust Systems & Accessories
Company/Brand: Holley Performance Products, Inc.
gm differential casting numbers in Hooker Headers Exhaust Systems & Accessories by Holley Performance Products, Inc.
requires hooker frame mount #12651 for gm 4 speed 119 this header requires the ... 138 will not fit with heater 139 front differential pinion is below centerline of axle 140 ... front differential pinion is above centerline of axle 141 ... vehicle code for 1975-82 chevrolet/gmc trucks and blazer/jimmy equipped with ...