part number for Superbird fans (engine cooling)?

[rainbow4jd]

Reading that (to me ) it seems there were two fans on the Superbirds.... one early production and one later. 

Are these clutch fans or direct drive (or both)?

I looked at the other thread and it sees a 623 fan (direct drive) is at least one of the correct parts.    What was the other.

Any general clarifications to my lack of understanding (with some photos) would be helpful.   I have not looked to see what fan is on mine (its 400 miles away) but I will this spring.

Thanks

[hemi68charger]

The fan used on the Superbirds that was of the direct drive type was  2863223. Not sure off the top of my head what the spacer number is.

The fan for the earlier clutch system was 2863216 I believe with the "070" clutch