Lemforder is great. I would probably check the tie rods as well, maybe even do the shocks. Check the rear end as well.

I typically just replace everything in the suspension at the same time if I know it either hasn't been done recently or was done with crappy parts. On the W116 that shouldn't be too bad unless you are considering doing the rear subframe mounts.

__________________
Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.