Well, after much running around, Mercedes cannot reboot these axels and every other import auto repair company in Austin Texas balked. I finally found a one man shop that says there is no need in replacing the "cans" and also he said he has his own grease and an assortment of boots that are better than my kits included; thus I can get my money back on the kits I ordered. I had to agree, why replace the cans?...the boot is what needed replacing...and I am willing to take a shot with his boots. I am supposed to pick them up tomorrow...if it is not what I think, I will report back. Thanks for all of the input.