I wouldn't worry about the springs unless you're bottoming out the suspension all the time. My rear suspension rebuild wasn't necessary until about 240,000 miles when I finally couldn't get the rear camber set correctly anymore.


I would inspect the guibo and driftshaft bearing carrier for play as the source of your driveline clunk.

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2016 F15 x35i
2014 F32 428i


2004 E46 325i sold at 123,600 miles
2002 E53 3.0 sold at 388,801 miles
2001 E46 325i sold at 66,000 miles


1970 Firebird Under restoration