I installed new OE spectrum front struts and mounts, rear shocks, and front sway bar bushings, but the ride is still pretty rough. Additionally, I changed the inner and outer tie rod ends and had the car aligned. The rear end creaks pretty loudly when I turn into my uphill driveway. I am thinking of changing rear sway bar links. Any ideas how to diagnose suspension problems. The tire pressure is around 30psi in all four tires. Thanks, Bob.

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1987 Mercedes 260E (W124) 213,000 miles
1971 MB 220 w/ 4 spd manual (W115) "Suzy" (sold)