Back end knocking when breaking.

Back end sounds like anyway, is knocking when I break medium to hard. Doesn't do it when accelerating.like someone tapping it with a hammer. Any ideas? Been converted to 2WD as well thanks.

Check your exhaust system rubber support at the box and along the pipeline.
Another area is welding points at suspension system. Stranger also rear seats if five door on the latches can rattle.

Thanks for reply. It's a very uniform noise if that makes sense. It's like every second it will knock untill almost stopped

Stick wheels in the air and spin whilst listening underneath. May be diff or driveshaft joint.

Judd8008 said:

It's like every second it will knock untill almost stopped

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When was the last time the drum assemblies were removed for maintenance?
They should be stripped, cleaned, lubricated, reassembled, and adjusted every year, but it seems people don't bother with brake maintenance now.

Nodge68 said:

When was the last time the drum assemblies were removed for maintenance?
They should be stripped, cleaned, lubricated, reassembled, and adjusted every year, but it seems people don't bother with brake maintenance now.

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Could it still be drums even though they don't use break peddle to stop?

Judd8008 said:

Could it still be drums even though they don't use break peddle to stop?

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That might be your problem!

I doubt it though. Unless the car hasn't passed a MOT for a while, I'd imagine the rear brakes are still operated by the brake peddle.

Judd8008 said:

Could it still be drums even though they don't use break peddle to stop?

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Yes. It's not uncommon for the brake backplate splash shield to rust and detatch, and rub on the drum.

Could be rear subframe bushes. Good luck if it is.

Col