At 100K, just replaced the front shocks and rear springs/shocks on my 99 ML320 with Bilstein and the ML55 springs/shocks, respectively. Interestingly, the ML55 springs are the same length as but different color from the ML320 but the shocks are about 0.5" shorter. Since the front Bilsteins are also slightly shorter than the OEMs, I am not sure if I'll need to adjust the front torsion bars. I am going to drive for a week to let everything settle in before making torsion bars adjustments, if necessary.

The truck appears to sit higher than before but I am not sure if it is because the old units were shot and were sagging or the new units haven't settled in yet. Overall, the new ride is so much smoother. It is difficult to detect the gradual deterioration of the ride daily but with the new units in, it feels like night and day.

If anyone needs the OEM rear springs, please contact me.

After driving with the new suspension several hundred miles, I am very happy with the improved ride quality and performance. I can take on a few familiar winding roads at greater speeds.

As for the height, I measured from the ground to the fender and got mixed results:

Driver front: 33"
Passenger front: 32.5"
Driver rear: 33.5"
Passenger rear: 34"

Since the ML55 rear springs/shocks are shorter than the ML320, I was expecting the rear to be slightly lower. Then again, I didn't measure the stock height before R&R. Does anyone have the stock measurements, all 4 corners?

silver99320, those are very simlar to my ride height mearuements. I have a 2002 ml500 with ml55 shocks and springs (also H&R swar bars) The car seems to ride very well. Much higher in the rear that my ML500 shocks/springs but I think they were shot.