stick-shift...PLEASE help!!

[Gasoline Fumes]

Originally posted by ivymike1031
...Leaving the clutch in (disengaged) at a light does load the crankshaft thrust bearing, and it does load the throwout bearing. In both cases, the bearings will be doing the jobs that they are intended to do. The throwout bearing should be designed to outlast the clutch disk (although not all of them will), and the crankshaft thrust bearing should last longer than most people need to worry about...

What about aftermarket performance clutches? How much more force will they subject to the thrust and throwout bearings?

[ivymike1031]

That information should be available from the manufacturer for your particular application. Common figures are between 25% and 50% increase. A new throwout bearing will probably come with the new clutch, but I would guess that the stock bearing would do just fine in most cases.

If you're racing the car, you'll be changing the clutch regularly anyway, right? If you're not, then what're you doing with a performance clutch? Towing something?