Fan clutch Size

[Kevin 007]

I was at the wrecker today getting parts for an old Dodge and they had some idi parts kicking around under a bench and I bought a inj. pump, manifolds and starter.
I also bought a fan clutch for $50 (thought that was cheap) but he asked if mine was a 5 or 6 inch cluctch? Didn't know what he meant...I was in a hurry so I didn't bother asking

What does he mean?

 

[FordGuy100]

Does he mean the wrench itself? If so its some weird mm size I thought....

 

[Kevin 007]

No he was talking about something that was in relation to the pilot bearing on the water pump???
But maybe thats the size of that big nut between the clutch and water pump....nah, don't think its that big.

 

[rjjp]

Mounting bolts, clutch to fan.

 

[Kevin 007]

Oh ok I see.
I don't know what mine is then. When I bought my new clutch I just through it on without any issues. Must have ordered the right one I guess.