Seemed obvious when I wrote it but it does read both ways. I meant the carrier bushing between the rear LCA and hub carrier, not the rear bushing of the front LCA
Here's some info on the job -
http://www.peachparts.com/shopforum/diesel-discussion/301701-home-made-$15-w124-lca-bushing-tool.html
Here's some general guidance on W124 rear suspension -
http://www.peachparts.com/shopforum/diesel-discussion/300339-mercedes-w124-rear-suspension-guide-2.html
Sixto
87 300D