Unimog Club UK

Sorry not very clear at the moment got loads of work on at the moment, the dampers are the same front and rear on 411 the original Unimog dampers are set for heavy rebound to control a heavy axle under a light vehicle it's not something you have to worry about. If your existing dampers are knackered you will notice a massive difference in the way she'll drive.
On a 411 synthetic oil will only release a little power due to less friction not worth it on a 411 just regular oil change will do.
Moose