Duel mass question

[Mk2_tel]

How can you tell if its on its way out?
How long do they last changes mine 40k ago.
I have a solid clutch SRE so when I turn car off I always have had the horrid rattle sound.

If I have my car at 3k revs neutral and hold clutch down then slowly raise it the noise is horrid and vibration is this normal?

Cheers

[EsSeX dAn]

they usually vibrate when getting your toe down and make a grumbling sound. theres load of youtube videos showing you. theres no real time frame on them, mines been vibrating for about a year or so. i just need to get around to swapping it, ive got a new kit sitting in my room for one!