Fan spacer, measuring 2-9/16 inches or sometimes mentioned as 2.95" including the tip. Application includes 1968 Mercury Cougar and Ford Mustang with 289/302 engines and air conditioning. Additionally listed as 1969 Boss 302. Reference number YA-27, same as part # D2AE-8546-A.
Ford part # C8ZE-8546-D, Ford engineering # C8ZZ-8546-B.
*Note - Found marked C8ZE-A and C8ZE-D. With FoMoCo and Ford Oval embosed.