I have replace the clutch on my rustler but it

probably any auto supply store

Incorrectly fitted clutch, faulty clutch or oil on clutch plate causing judder

few things could be wrong, master cylinder (mounted on firewall) could be dead might be slave (gearbox) check both, get someone to push clutch while looking at the fluid in the master if it drops it's still good. do same gain and watch the slave if it extends and moves the lever it's still good, last one should mean your thrust bearing is rooted and needs replacing, drop the gearbox and replace the bearing. hope this helped

Yes you need to replace the clutch,pressure plate and the throw out bearing and take the fly wheel and have it resurfaced it has burnt spots in it and that is your shudder.

On your next clutch replacement make sure you take the flywheel off and get it machined flat, install a new pressure plate and friction disk and replace the throwout bearing also...Don't be cheap and try to get by with just a friction disk...do it right and it will work for a long time. and take your foot off the clutch peddle when driving!

Its more than likely the clutch or pressure plate. A chewd up clutch will vibrate when engaged.

If this is a standard transmission, I would bet money that what you are experiencing is clutch chatter. The clutch may still seem to be working ok, but it will definitely get worse. if you have an automatic transmission, please clarify. To get an idea of what a new clutch kit will cost you, please go here And don't forget to visit my blog.

The shudder comes from ignition malfunctions. Replace the spark plugs and plug wires.
Check coolant level for the white smoke concern.

Clutch problems are common with the Mazda 6...usually a shudder starts then slippage occurs. Many owners have had theirs replaced under warranty. Recommend you get an aftermarket complete clutch kit, when you replace it...the OEM clutch is not dependable.
Good luck...i hope this helps.

a had sabe problem in a same model about one year.
i replaced inner and outer cv joint