I have an 86 190E 2.3 8V W201.024, needing ball joints and lower control arm bushings. I have a question concerning the bushing install. 1) The manual says that the "shore hardness" should be matched by replacing bushings with the same ones removed. Is this the "nubs", 2 or 3, on the bushing itself? 2) Do the bushings come in various hardnesses? (other than OEM vs. Sportline) 3) The manual shows 3 different types of bushings, how can I tell which ones I have without removing the control arms, putting the car out of action, to get the right ones? 4) Are the bushings with the sleeves needing any special install proceedures? 5) Are the control arms the same? ie. can I replace the sleeve type with the simpler 2-single halves? Any input would help....Scott