On an '82 MBZ 300SD, both rear door strikers' rubber inserts are worn
out. Can I get the inserts some where without buying the whole striker?

Is there a secret to removing the strikers' allen screws? I'm afraid of
rounding out the allen screw heads. I put a cheater bar on the allen
wrench and I get a lot of torque but the screws won't budge until
finally with very much torque it starts to round out the hole.
thanks, George