clutch shouldnt be goin out at 50,000, u should get at least another 30-50k out of ur stock clutch. theres a fella on aveoclub.net who sells aftermarket clutches for the D16 tranny, id recommend one of those over another stocker. cant give u prices tho. check out gmpartsdirect.com for a good deal on an oem clutch. hope this helps ya some!