Quote:
Originally Posted by BenzDslPwr
My MB: 1985 300SD - 170K miles, mostly city driving
- suspension (?) - just recently, I noticed that my rear end is sagging a bit. 90% of the time I drive by myself and hardly have any passengers. So, when I sit 2 adults in the back, the rear end goes down so much that my exhaust pipes grind against the ground when driving on uneven surface.
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Firstly, it would be good to get a measurement from the pavement to the inside of the wheel wells. We could then determine how bad the problem is. Do it with no weight in the vehicle and with little fuel. Do it on both sides.
If the car is original and nobody has done any work, the following items are the culprits:
1) Differential mount
2) Shocks
3) Subframe bushings
4) Springs
However, you may be able to avoid new springs if the remaining items are changed and you obtain a thicker spring pad for the top of the existing spring. It all depends on how severe the problem is.
On my SD, I cured the problem by going to the thinnest possible pads above the front springs. The front end came down and the back end rose slight. Coupled with new shocks and a new diff mount, the SD sits perfect.