OK, thanks for that info... The thing is, the center vents would not work in the summer to blow AC air through. I am only deciding to fix it now, because I need to repair the monovalve, and might as well devote some time to the climate control (and buy any required parts) while I'm at it...

Thanks

JMH

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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)