i installed my aluminum driveshaft i know that it has to go on a certain way there is a yellow round sticker on it .it is the size of a silver dollar i know that there are notches that you are supposed to line up so that you don't end up with vibration my question since the rear end is not original to the car and i don't have the notches to guide me does this sticker matter whether it is located up or down when mounting the drive shaft?
How does this happen? I'm interested in this answer.u dont have to worry about a vibration with aluminum it balances it self out thats why it dosent have any weights like ur stock one does.
How does this happen? I'm interested in this answer.
I have ran into a few shafts over my career that have caused a vibration when installed. Meaning when there was no vibration beforehand. When pulled and moved 180 degrees the problem was always corrected.
u dont have to worry about a vibration with aluminum it balances it self out thats why it dosent have any weights like ur stock one does.
How does this happen? I'm interested in this answer.
It absolutely does need to be lined up, and imbalance is only half the story. Runout is the other. The driveshafts are marked so that their points of imbalance and runout complement the runout point on the pinion flange, which is marked at the factory with a white/yellow paint dab.
If you want to learn more than you ever thought possible, look no further than this, written by a Ford driveline engineer
http://www.tccoa.com/articles/tranny/transmission/page17.shtml
yeah i am swapping out my 2.73 for 3.55 and stock 17x9 cobra wheelsThe pinion flange, if marked (I've been working in the field every day since 1990 and have maybe seen 2 pinion flanges marked), could have been replaced or removed to re seal and reinstalled at any index point. There is generally no blind spline. And the while the propshaft is marked for the heavy side and does have run out, it should be within the tolerances that the manufacturer provides. I would be much more worried about the pinion angle change from lowering the car or the frequency shift from changing gear ratio and tire size. The indexing is irrelevant.
The pinion flange, if marked (I've been working in the field every day since 1990 and have maybe seen 2 pinion flanges marked), could have been replaced or removed to re seal and reinstalled at any index point. There is generally no blind spline. And the while the propshaft is marked for the heavy side and does have run out, it should be within the tolerances that the manufacturer provides. I would be much more worried about the pinion angle change from lowering the car or the frequency shift from changing gear ratio and tire size. The indexing is irrelevant.
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