why is my rear end of truck is swaying? on 2002 Infiniti QX4

i own a 2002 qx4 with 116k miles I had new tires and wheel alignment done. 2-3 months later the rear end begins to sway while driving when I press and release the gas pedal. Havent driven it to much since then but now it just feels terrible. Does anybody know what might be wrong?

by in Alsip, IL on January 03, 2012
2 answers 1 comment
ANSWER by on January 03, 2012
If the original repair shop is your trusted facility I strongly suggest taking it back for an inspection, if not take it to a well known alignment shop for an opinion and estimate. Sounds like a suspension part in the rear is loose or worn out.
ANSWER by on October 26, 2012
if this occurs after about 40 mph and feels dangerous like your going to flip over you have to replace the rear trailing arms both R/L upper and lower
COMMENT by on December 01, 2012
My 2002 is great but has two problems. 1. go over the smallest bump and the rear end sounds like an axle dropping from a foot in the air with any speed. 2. while stearing, and making a curve,the stearing wheel jumps 3 or 4 inches one way or the other as if if were 67 camaro that needed a idle arm with no busings to tighten up the stearing. Any suggestions. Please reply. Thank you, Johnny

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