Great DIY! I have been dreading this job, but after seeing this I'm confident I can figure it out. However I will be doing this on my W116, though I beleive its a very simalar setup. I ordered the pin wrench socket, and should have it by the end of the week. Looks like I just need to pick up a 3 jaw puller, guage, and the brass drift.

Some advice on these tools would be great.

Would this be an ok puller for the job?
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=4876

I am having some trouble finding a metric dial guage for less than $130 but I may be looking in the wrong places. Anyone know of a good deal?