Hopefully i can help..
Was this an issue before the exhaust rear section was replaced?
What was the reason for the replacement of the rear exhaust section anyway?
Is this knock from any particular side at the rear?
hi, the knocking is coming from the rear o/s wheel area and seems to be lower than the n/s.
the knocking was before the exhaust and seems to be on left hand side. the exhaust was changed because the back box had split.
knocking a lot worse when weight is in the rear of the car.
Hi..there thanks for your reply
Ok..I certainly check up the possibility that the exhaust/part of the exhaust system isnt actually knocking on the axle beam..when theres alot of weight in the back this means the axle will be alot closer to the exhaust system or floor..and sometimes when going over rough areas "might" cause the exhaust system to bang/knock against the rear axle..if there are any noticebale marks on the system or axle at the side the exhasut comes up and over the axle at the back..then they need to check the rubber hangers/mounts for wear..normally they should change the rubber supports/hangers depending on their condition when part or the full exhaust system is changed...The other cause for rear knocking is as already suggest the rear axle beam bushings..those are the bushings between the axle beam and the body of the car..so when any sort of weight in the back could exacerbate