Given that I haven't done it before, I'd rather do it right. I don't have a feel for it.

And I am inclined to add the additional thermal capacity of the heavier front rotors which will help act as a greater sync of converted momentum, since I'll be looking to put rebuilt calipers on anyway. Nobody sees the rotors, it really isn't a look thing on a w123, but a peace of mind and additional heat holding capability is provided, which is beneficial, IMO

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (116k)
1991 350SD (206k)
1991 300D (228k)
2008 ML320 CDI (199k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (267k)

Past Diesels:
1983 300D (228K), 1985 300D (233K), 1993 300D 2.5T (338k), 1993 300SD (291k)