i would think getting that kind of extended mileage is not too much of a stretch.from what i've pieced together about these shocks, they're very strong and reliable as long as you say the accumulators are replaced(and i would think, replaced at the right time).a couple of hundred bucks might seem like alot to some - until they realize how much the shocks for the are!
now,i'll have to find a shop that can do this repair!thanks!

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'95 s500 (bought for wife but can't bear to share!!!) 125kms
'92 legend 180kms
'88 tbirdturbo(fantastic car-only regular maint.)120kms
'87 mustang gt(gone)
'86 tbirdturbo(gone)
'85 mustang gt(gone-but not forgotten)