There are two W126s in our family - a 1981 300SD and a 1990 300SE.

I am suspecting they are long overdue for subframe mount replacements as well as differential mounts.

I went to the Baylor U. site for info and noticed it covers only the rear subframe mount bushings.

I would appreciate it if someone could clarify how many front and rear subframe mount bushings there are as well for the differential.
Also, why are the rear ones discussed more often then the fronts ?

I've read various threads and have a good idea what's involved but not very clear on the above questions.

Thanks for any help you can offer,

Alan