On a '87 300TD the idler bearings for the a/c started to howl, I started to pull things apart, now I discover that I need "special tool" to remove the spring plate for the clutch. It looks like a large bolt with a smaller bolt threaded in the middle of it. My question is can anyone tell me the bolt size, and thread pitch for that piece, or do I just need to ruin the thing, and replace it? I'm pretty sure I can pry it off with a couple of screwdrivers.

 

Now I feel like a fool, a small screwdriver and some light tapping and it came right off. The local O'reilley's had the replacement bearing and it will be going back together in the morning