What age and / or milage should shocks and springs be ...

Welshbeef said:

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As per title

Clearly shocks wear with milage

Nope I'd not say that at all. 10,000 miles on a smooth motorway would be far less taxing than 3000 miles on a cobble roads.

Welshbeef said:

and also age.

Nope not directly either, as you might only do 500 miles a year or 25,000 miles a year. On a 25-35 year old car maybe it's more of point, but nothing newish.

Welshbeef said:

Clearly you could choose to run them until one leaks then change that axle or until it is an MOT fail.
However shock absorbers are key to stopping distance. So again stopping distance to me is very high on the priority so guess what's the equivalent shock wear to tyres down to the 3mm tread depth at which point stopping distance increases materially.

Gas and oil shocks don't wear in the same way rubber tyres do.

Welshbeef said:

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Next springs.
These wear due to constant weight of the car compressing

Maybe, but rust and high impact shock (pot holes) are likely far more damaging.

Welshbeef said:

then so they lose their reverb clearly if you carry more weight more often they wear out sooner. Or if you drive on a rougher road surface they will wear out sooner.
Generally people change springs when they snap. And then change the whole axle or if they lower the car properly for track use or faster road driving.


So what's the views.

Replace them as and when they need it, or you think they need it

Nope I'd not say that at all. 10,000 miles on a smooth motorway would be far less taxing than 3000 miles on a cobble roads.Nope not directly either, as you might only do 500 miles a year or 25,000 miles a year. On a 25-35 year old car maybe it's more of point, but nothing newish.Gas and oil shocks don't wear in the same way rubber tyres do.Maybe, but rust and high impact shock (pot holes) are likely far more damaging.Replace them as and when they need it, or you think they need it