in the mbca club technical reprints #2, repairing of the 1977-81 automatic climate control servos is described. there are a number of references to replacing gaskets and to replacing the center section with an aluminum center housing vice plastic. two questions:
1. is there a general rebuild kit for the acc servo?
2. who sells the aluminum center section? jodel associates was the listed but the phone number is no longer good and an internet search is negative.

i am asking the partsshop also.

thanks, j.r.