I'm replacing struts on 00 Impala, as of right now and 5hrs i've only got one replaced. It supposed to require a special tool to remove and reinstall the nut holding the strut assembly together. It's called a gm strut tool, has a socket with a hex in the middle, but the new monroe sensa-trac doesn't have a hex inset but another type of bit. No one seems to have these tools in stock. I can remove the old strut nuts with a impact gun, but I prefer not to tighten that way. I can use a open end wrench and one of those bits in a socket setup, but I'm afraid i'm not getting it tight enough. Anyone with helpful pointers... you know it's not a hard job except that one nut.