Got the new rear 420 springs installed - NICE
 

This is after the right rear shock mount finally rusted through the trailing arm. I had a new/used trailing arm waiting to install but didn't think I'd be installing it in an emergency case like this :eek: After picking up the car, he told me that the spring itself was VERY close to *ALSO* punching through the trailing arm :eek: :eek: :eek: THAT would have been a scary thing to happen on the road!

Anyway, while having it installed, I also took care of the saggy rear end. My indy installed some springs form a 420...and whoa! what a difference.

The amount of body lean in corners is noticeably reduced. The wife even commented that the car feels stiffer (in a good sense - and she normally doesn't notice changes like this). And most importantly, the rear end sits exactly how I would expect it to sit. Couldn't be more pleased.

Indy says that the 300SDs (W126) came with too-soft reear springs from the factory and installing new 300SD springs wouldn't have done much good to correct the problem....hence the 420 springs and new pads.