iwll be replacing the left rear trailing arm on my 83 300sd within the next week or two. i am pulling one of a car in a junkyard so i will be needing to replace the bushings. my question is should i do both sides of the car since i have to drop the sub frame. (bolts are seized and on is in backwards. im not sure if replacing one sides bushings without doing the otherside will make it ride differently. any info would be greatly appreciated.