Air Cleaner STUD: 63-81 GM MOST all - Size overall 2 5/8" or 60mm Often a front license plate

Often a front license plate partly obscures this center section on states needing a central license plate or use there off etc

progress has happened and the product is excellent

Olds & Buick 4 door post sedans also

used on cars with side marker lights (ie 1968 side markers started)

Air Cleaner STUD: 63-81 GM MOST all - Size overall 2 5/8" or 60mm Often a front license plateCarby to Air Cleaner stud.. for AF thread needs.. as in most all of the era.. 1963 81. This is one of two main sizes. Thread is 1 4 20 Size overall 2 5 8" or 60mm (the other is # INL14883) Suits various Firebird, Camaro GTO, Full size cars.. Corvette.., Nova, Chevelle, and many light trucks.