hello ,help have an 04 sedan 2.7Liter with 92000 miles. a friend replaced my rear struts(k--brand) about a year ago they blew out less then 700 miles.got sensatr-- brand ;replaced them myself got all new hardware from dealer; bushings, washers and the sleeves from dealer. also replaced springs at same time. problem is car will ride good for 30 miles or so, then gets real loose(kind of floaty feeling) bushings flatten(compress) out have tried several brands same thing happens. i use a torque wrench when i tighten them.Any ideas on what problem is .also have replaced the top spring/mount seat bushing both sides, rear sway bar bushings and links.

 

Welcome to DF
I would start checking the rest rear suspension and see if there anything else that is loose. There has been problems with the upper control arms.

 

thank you master tech for the welcome and reply,have had 2 mechanics look at suspension they say everything is tight, do you know what problems the control arm's have .can't find info on how to check rear arm's myself