Knocking noise, From the rear suspension. Options

[skogs]

Hi. I recently had some work done on my celica's rear suspension, the workshop replaced two rods, don't know what they are called in english, stabilisator rods or something? A rod with a ball on each end.
Anyway, a few km's after i got the car back, it started to make some really loud knocking noise when hitting even the smallest bumps in the road. I can really feel the knocking too. It seems that the knocking comes individually from both rear wheels\shocks.

I had the car back on the workshop and asked them what was wrong, and they blamed the exhaust-silencer's heat-shield, which is a little loose. Fastening that didn't help of course.

Does anyone have any ideas what could be causing these noises? I love my celica, and feel really bad everytime it knocks

would greatly appreciate some help!

[azian_advanced]

you should take it back to them and have them sort it out..

btw when checking the bushings on the suspension arms, the car needs to be on the ground and not raised. raising the car adds tension to the arms and you won't be able to tell if the bushings are worn just by shaking the arm.

for starters, check if they put on the sway bar bushings.