Need some help

[Donnie]

need to know the min. thickness for Chevelle rear drums.

also anyone with a 69 Chevelle build sheet. whats the letter code for the rear lower control arms?

Thanks Donnie

[Bill Rose]

Non-boxed control arms:
Lower-EE
Upper-XX
As per box 76 on 1969 build sheet

[Donnie]

Thanks Mr. Rose