The clutch in my Jimny has been getting progressively stiffer and stiffer. It is now at the point where it is almost impossible to use. So i cant take it out at the mo

Can you get heavy duty clutches?
Does anyone know if you can get them for the Jimny?
Should i get one if they are available?
And finally can anyone recommend somewhere to get this done in Christchurch?
Thanks in advance.