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IRS Rear End Clonking Possibilities


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IRS Rear End Clonk

 

Wire wheel loose on splines

Wire wheel adaptor nuts loose

Steel wheel nuts loose

Something in the boot

Lever arm damper attachment bolts loose

Lever arm drop link loose

One or more of the 4 diff support pins broken on the chassis

Drive shaft splines worn

Drive shaft UJ’s worn

Drive shaft/diff attachment bolts loose

Driveshaft spline lock

Propshaft splines worn

Propshaft UJ’s worn

Propshaft attachment bolts lose

Diff input pinion loose/to much play

Diff output half shaft key worn

Diif front brace attachment bolts

Diff pin loose nuts

Exhaust system knocking

TRailing Arm bushes

TRailing Arm brackets cracked/loose

TRailing Arm attachment bolts loose

Trailing Arm chassis member cracked

Doors clunking on the anti-burst brackets

Body loose on the chassis

Edited by RogerH
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On 7/27/2018 at 10:32 PM, DOG_MORGAN said:

Hi naill what's is this please. From Billy

 

Its the Front Mounting Plate on the Diff the 4 Bolts are of a special type of Taper Bolt and do come loose which in turn causes a Clonk when Tourqe is applied,they are located behind the Pinion Flange.

 

Edited by TR NIALL
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Once had a nasty rear end clunk in my Peugeot. Turned out to be a wheel nut rattling around in the spare wheel well

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Single clunk form brake shoes releasing

 

 

Pressed steel diff carrier fractured

Edited by Peter Cobbold
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Also, the steel sleeves inside the rear diff mounting rubbers can come unstuck from the rubber bit (to use the correct technical terminology).

Best wishes,

Paul

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A very good list Roger.

Plus add Nail's point. As i had one of these bolts work lose and jam the prop shaft.

When there are so many bolts at the rear it could be lots of things that clonk.Shock absorber bolts and wheel fittings would be my first look at. As he states that the clonk comes in after things warm up i would not think broken parts.

 

Roy

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