bushes

[C0RKTINA 107]

Im getting a knocking rattling noise from my back axle....it could be the exhaust hitting something, but i think not, so Im thinking bushes. which bushes are the most likely to be worn..... please dont just say the Void Bushes, because i need to be pointed at the bush itself ( the last time i did someit was the two on top of the axle, but the symptoms were differnt....on that car , the axle was sliding about the place.

 

My garage is having a  look next week so I'll then be able to order bushes for it, but i thought if there was an obvious candidate I could get them in advance...

[J2S 163]

Well if not the top arms to top axle 

it will be bottom arms to chassis

 

[C0RKTINA 107]

35 minutes ago, J2S said:

Well if not the top arms to top axle 

it will be bottom arms to chassis

 

 

so there's just four of them?  that's what I thought but wasnt sure....i think i'll just order them all, would be worth doing. Thanks for answering 

 

https://www.motomobil.com/en/products?producer_id=1&auto_id=240&auto_mod_id=244&category_id=5&q=bush+rear+axle&artnr=  whcih ones would I need?

Edited November 6, 2025 by norton

[btboy 50]

We had a car that did similar - double check the top bolts on the rear shocks are fully tightened. 

[markymarkthree 178]

5 hours ago, norton said:

 

so there's just four of them?  that's what I thought but wasnt sure....i think i'll just order them all, would be worth doing. Thanks for answering 

 

https://www.motomobil.com/en/products?producer_id=1&auto_id=240&auto_mod_id=244&category_id=5&q=bush+rear+axle&artnr=  whcih ones would I need?

I wouldn't order any of those, i would order these.

EBAY 1

EBAY 2

Although i wouldn't pre-order anything till i knew where the problem was.

Edited November 6, 2025 by markymarkthree
addition

[C0RKTINA 107]

20 minutes ago, markymarkthree said:

I wouldn't order any of those, i would order these.

EBAY 1

EBAY 2

Although i wouldn't pre-order anything till i knew where the problem was.

Why? 

33 minutes ago, btboy said:

We had a car that did similar - double check the top bolts on the rear shocks are fully tightened. 

will do.

[markymarkthree 178]

Just now, norton said:

Why? 

will do.

Because if those bushes arnt the problem, you will have wasted money on them.

If that isn't a problem, go ahead and order. 

[C0RKTINA 107]

6 minutes ago, markymarkthree said:

Because if those bushes arnt the problem, you will have wasted money on them.

If that isn't a problem, go ahead and order. 

i was asking why you wouldnt order from Motomobil.

I wont be ordering from a UK source because it causes complications importing them and extra expense.  

 

[markymarkthree 178]

22 minutes ago, norton said:

i was asking why you wouldnt order from Motomobil.

I wont be ordering from a UK source because it causes complications importing them and extra expense.  

 

The bushes you have listed from MM are all for the lower arms or ARB. 

The bushes i have listed are all for the upper arms.

The problem could be a lower or an upper arm bush (8 in total). I would put my money on upper.

Also there are different size bushes available for the lower arm.

Hence, why i wouldn't buy anything till i knew where the problem is. 

Edited November 6, 2025 by markymarkthree
addition

[btboy 50]

I’d check your shocks too - they have their own bushes that can wear and cause knocking

[sheffieldcortinacentre 753]

Most common is the pair on top of the diff, next being the lower arm axle end. You'll need the tools too remove/insert the bushes ( as their an interference fit ) least likely are the body end off the arms .

The lower arm front one had smaller bushes on prefacelift mk3's/TC1 after that they all used same larger one ( but earlier arms could've been swapped on at sometime).

Axle bushes MUST be tightened with the weight on them or they'll be twisted once at normal ride height causing premature splitting/tearing.

There's one bush in each end of arm each at a different size.

 

Top of diff X2,

Top arm body end X2,

Lower arm axle end X2,

Lower arm body end X2 prefacelift (smaller version,

Lower arm body end x2 facelift onwards (larger version)

 

Shocker bushes it's usually the lower bushes they used to be available but rare to find them nowadays.

Wear in any of the above will cause a thud , worn exhaust rubbers usually causes a hollow clank/clang.

Edited November 6, 2025 by sheffieldcortinacentre

[C0RKTINA 107]

ok i'll let the garage decide whats needed and proceed from there. I assume from what Craig said that new shocks would be needed if the rubbers are worn. It could be that I'm hearing because the car is driving nice and tight .... my Tuanus was all over the place when it needed bushes.

AT least the mechanic could hear what i was saying about and didnt seem to think the wheel bearings were an issue,   tthe second thing i wanted them to check....they could scream their heads off and i wouldnt hear it.

 

(it's a low mileage car, but the age is there....

Edited November 6, 2025 by norton

[C0RKTINA 107]

thanks for all the info guys, much appreciuated. The car is going to the garage next friday to see whats needed. Im leaning towards it being the shock bushes, probably would have to get new units altogether, buit they seem readily available and my garage should be able to get them, maybe 50 squid the pair. The part no which seems to crop up most is 43017 or 443017 

 

i have the bushes indentified now, would be about €125 plus p+p for the eight, c either way not too dear. Labour is another matter....( im getting too old for rolling round the floor under the car, makes me feel nauseus after a while.

[btboy 50]

Let us know the outcome. 

[C0RKTINA 107]

2 hours ago, btboy said:

Let us know the outcome. 

will do... unusual for me i have both cars off the road awaiting parts now.