Milleage / speedo stuck

Hi. My mileage has just got stuck on 99,999. Anyone any idea how to dismantle and unjam ? Or do I just need a whole new one ?

Thanks !

No idea really but I would try a drill in reverse on the cable.
Might take a while if it works though.
Speedy cables could sort it as well.

You mean wind it forwards and back a few times ?

No,
Find out (by watching the cable rotation) which way it goes when travelling forward then rotate the cable the opposite way by fixing the gearbox end in a drill chuck.
The speedo might start going backwards and scrub off some miles and start working again?
I knew someone years ago who did this on an old Mazda and it worked, he was doing it to fiddle expensices or something.
If it don't work you've lost nowt but time.
Speedy cables can fix it, they reset mine to zero after my total rebuild but they took ages to do it.

Ah. Great. Thanks ! Ill give that a go. !!

Cheers !