5th Gear Member
Join Date: May 2008
Location: San Francisco, CA
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It's a new vehicle for you... i would try and make contact with the previous owner(if possible) and see if the springs were changed prior. If the are perfomance springs... yes, they will have a much stiffer ride than stock springs.
The clunk you hear is most likely from poor installation of the shocks/struts. On takedown and replacement, a mech usually inspects the rubber bushings for wear, and replaces or reinstalls them depending on how he deems fit.
For the rear, removal and replacement is pretty straighforward. The only thing that might go wrong there is the mech forgot to torque down the fastener bolts. Front struts however, are tricky. If the rubber parts showed damage and were not replaced and/or the spring did not rest squarely on the spring base, then those are areas to re-inspect. the top strut bolt is also worth checking for looseness.
New 40 series or 35 series tires will also give u a "hard" ride. Tires pressure also come into play when we talk of stiff rides.
Wobble at 40-60... that is indicative of bad rims or need for balancing-specify DYNAMIC balancing. Static balancing that most shops do will not detect tire/rim imbalance at speed.
Tranny at 120K. I would recommend a tranny filter and oil change. That would be more efficient than a flush and less expensive.