MustangWorks.com : Ford Forums - View Single Post - Vibration from shifter @ high-rpm's in 3rd+ gears only !!

jetuomi · 07-17-2001, 10:46 PM

actually, I just had a thought !!

I got the u-joints replaced when I got my car certified, along with the flywheel resurfaced (and machined)

back then, now if my memory serves me correctly, the car rode smoothly..

but, what if the flywheel was machined "wrong", and over time, pressure was being placed on the u-joints, and now they are failing prematurely? if I get this new driveshaft put in tomorrow, and its fine, should I reconsider getting a new flywheel? (since this one has been machined over 2 pounds lighter, is there enough material to work with?) because soon enough, the new u-joints will fail???

does this make sense? is it possible to machine a flywheel "wrong" (I have worked a lathe many times, and I've turned down material "cock-eyed", could a professional do the same?)

okay, will post what happens after driveshaft change..

Also, if its time to change the flywheel, is one better than the other, is lighter REALLY better? is Aluminum worth it? or just go with the stock Ford one for $95 bucks??

THANKS ! : )

07-17-2001, 10:46 PM	#7
jetuomi Registered Member Join Date: Dec 2000 Location: Waterloo, ON, Canada Posts: 214	actually, I just had a thought !! I got the u-joints replaced when I got my car certified, along with the flywheel resurfaced (and machined) back then, now if my memory serves me correctly, the car rode smoothly.. but, what if the flywheel was machined "wrong", and over time, pressure was being placed on the u-joints, and now they are failing prematurely? if I get this new driveshaft put in tomorrow, and its fine, should I reconsider getting a new flywheel? (since this one has been machined over 2 pounds lighter, is there enough material to work with?) because soon enough, the new u-joints will fail??? does this make sense? is it possible to machine a flywheel "wrong" (I have worked a lathe many times, and I've turned down material "cock-eyed", could a professional do the same?) okay, will post what happens after driveshaft change.. Also, if its time to change the flywheel, is one better than the other, is lighter REALLY better? is Aluminum worth it? or just go with the stock Ford one for $95 bucks?? THANKS ! : )