I recently replaced most of the front end in my 82 300D Turbo.

The idler arm replacement is straight forward. Installation is reverse of the way things came off.

There have been postings on this site for doing alignment urself. Do a search and it should come up. I took it to a shop.

After replacing the steering tierods and lower ball joints, I seem to have an inch or so play in my steering. Replacing the steering box is an expensive option. The car is about 23 years old. I think I can live with that. Some members on the form have reported the same.

As for the lower ball joints, u will appreciate the ball joint removal tool as compared to a fork. Much easier.

If u intend to replace bushings on the lower control arm and/or rebuilt ur guide mount, it may be prudent to have the correct tools for compressing the spring.