The front shock has a saddle mount for the bottom with two bolts sticking out the bottom, the rear has a saddle with two holes for the screws that attach it to the rear control arm.

I don't know if they are valved differently, it's not a problem since they cannot be interchanged due to mount differences. Cost is nearly identical, I think.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!