I beleive the failure part is the internaly splined coupling inside of the transmission. Not the input shaft itself. I dont think spline design is the issue with input shaft failure on engine conversions. Darryl (Former owner of Specialty Auto in Washington state) had a custom one made for his Chevy conversion. If he is still on the list, he can give more detail. --- content22207 <brobertson@xxxxxxxxxxxx> wrote: <SNIP> > I fail to understand the inherent weakness of > Renault input shafts. > Ford runs theirs on the 460 (425 lbs torque) no > problem. Apparently a > Chevy 350 will snap the Renault. Or does it just > strip the splines? <SNIP> __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/