I am now W123 expert but W126's seem as cheap and simple to fix.

If its in a good shape it will be a fun ride. The 85's had slightly higher gearing that brought the rpm down a bit on the highway.

They are an awsome around town car as well.

__________________
2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200