I have some play in the right wheel. today I was looking around and found that the lower control arm bushing is causing the play. the bushing seems to be worn out. Is there a way to replace the bushing or do i need the entire control arm replaced?

something like this?

http://www.peachparts.com/Wikka/W126GuideRod

You can replace just the bushing.

How do you observe the play? More often it's the guide rod mount that gives up before LCA bushing. A loose guide rod mount results in wheel fore-aft looseness and clunk sounds when you apply the brakes abruptly or come to a stop.

Sixto
87 300D

It definitely clunks when braking, I also lifted the car and pushed the wheel around to see if there was play and it did clunk. I had my dad push the wheel in all kinds of directions and i observed under the car to see where the play was, and I saw that the lower control arm was moving and in particular the bushing.

The braking clunk is generally a bad guide rod mount.

Suspension Bearing Bracket guide rod mount replacement on the 1985 300SD
http://www.peachparts.com/Wikka/W126GuideRodMount

A lower wishbone as in the W124 and W140 has limited fore-aft movement. The W126 LCA needs the guide rod to control fore-aft movement. Left to itself, the far end of a LCA even with new inner bushing can easily be moved fore-aft by hand.

Sixto
87 300D