You would need to purchase this from a Mitsubishi Dealer.
I would Invest in a Haynes Manual.
main shaft bearing
You'll need a transmission manual. Available at your local auto parts store.
I am going to help you where no one did for me this is the actual factory service manual your local dealer uses in the repair shop it will answer anything you would want to know. http://www.onlinefreeebooks.net/automotive-machinery-power-equipment-ebooks/mitsubishi/2000-2002-mitsubishi-eclipse-eclipse-spyder-service-manual-pdf.html
The service manual does not specify the size. You might try asking the parts manager at a Mitsubishi dealership. Maybe their parts system would have the size.
I would get a haynes manual I have one it tells you everything and saves you tons of money if your a doityourselfer.
cranck sunser
Might wanna check with your local Nissan dealer service advisor. I have a 2011 Titan with 11k miles an my service advisor actually told me I can buy full senthetic MOTOR OIL an they would charge me a minamal fee to do the work
Check the fuel filter or the fuel pump.
Only when accelerating, I would suspect a broken motor mount or bad CV joint.
The inner seals have failed. You need a new clutch slave cylinder.