The TrailBlazer name actually debuted as the highest trim level available on the 1999 Chevrolet Blazer. In 2002, Chevy reorganized its lineup of SUVs, dropping the four-door version of the Blazer, and replacing it with the all-new TrailBlazer SUV. The 2006 model year marked the first year the TrailBlazer stood as Chevy's sole mid-sized SUV, as the automaker dropped the Blazer following the 2005 model year. The 2006 TrailBlazer had a bar spanning the rear suspension -- the sway bar -- to keep the SUV's body from leaning too much. The sway bar connects to the TrailBlazer's frame via one-piece sway bar links, making replacement of these links simple and straightforward.
Raise the rear of the TrailBlazer using a floor jack, and position jack stands beneath the SUV's frame rails. Lower the vehicle onto the jack stands.
Crawl beneath the SUV behind one of the rear wheels, and find the rear sway bar -- the thin bar that connects one side of the SUV's rear suspension to the other. Find the sway bar link -- the small bar on each end of the sway bar that connects the sway bar to the suspension.
Remove the two nuts -- one upper and one lower -- securing the sway bar link to the sway bar and to the frame, using a ratchet and socket.
Pull the top part of the sway bar link away from the frame, and pull the lower part of the sway bar link from the sway bar. Discard the old sway bar.
Insert the stud on the bottom of the new sway bar link into the hole on the end of the sway bar, and hand-tighten the nut onto the stud. Guide the upper sway bar link stud through the hole in the frame, and hand-tighten a nut onto the upper stud.
Tighten the upper and lower sway bar nuts to 66 foot-pounds, using a torque wrench and socket.
Repeat Steps 2 through 7 to change the sway bar link on the other side of the TrailBlazer.
