What size clutch?

[Wapiti D]

Seem to have taken the clutch out of my 75 CJ5 . I've been calling around for a clutch kit. Apparently the 75 came with either a 10.5" or 11" clutch. Can't check because I had to leave it up north. Can anyone confirm, what is the most likely size clutch in a 75 CJ5 with a AMC 258 i6 / 4.2l i6 and T-18 (I think).
Wapiti D

 

[Incommando]

Most flywheels are drilled for both bolt patterns and I am 90% sure that you can use either as long as all of the components are for the same size/tranny app. Maybe someone can confirm?

 

[bobbowtie]

confirm