Hi Pinnacle.
I hope that you do not have the Autoride system (I do love mine, though).
If you do, a set of four shocks costs $1,600.
The wording 'AUTORIDE' should be on the puffy stickers behind the rear doors that say SLE or SLT.
Please make sure that the suspension (sway bar, springs, etc) have been checked out.
Take care, Eggert Johnson
