CVF PS Pump Pulley incorrect? No Keyway?

Another for you guys this morning. I have an email into CVF but being the weekend and I’m impatient I figured I’d ask…. Is this (pulley in right of pic) the incorrect power steering pulley? I have an existing CVF Saginaw PS pump with 5/8” key way shaft. I removed the pulley that was on it from my 360LA (left pulley in pic) but the new pulley has no keyway provisions. Is there a bushing or something I’m supposed to have?
Pumps up to I think 73-74 use the keyway and then they switched to a press on pulley. Basically the pulley needs to match the pump. I also want to think the press on pumps are metric but that might of happened in the 80's.