I have ran Bilstein shocks on all fours on my 90 Carat for the last 6 months - I like them a lot when my van is at full load with gear or building materials (and I mean a lot) but if its just me and the family around town its a little bit of a hard ride from them 8)   My tires are and off brand they came with the van and still have to many miles left on them to replace them, I think better tires would also make for a better ride.

        /Brett