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Old 01-06-2011, 05:45 PM
cn90 cn90 is offline
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Location: Omaha NE
Join Date: Mar 2006
Posts: 14,421
Mein Auto: 1998 528i 5-sp 140K+

I do a bit more research and see that the Giubo has 3 pairs (Yellow Dots #1, #2, and #3) if you look closely.
For each pair, the rubber is thickened a bit.
There are also 6 "Cushion Holes" (Green Arrows) to take up sudden acceleration/deceleration (kind of a shock absorber).

Anyway, now it is obvious to me that the reason for Arrows is that in 99% of the time, the car moves forward, so the direction of rotation is Clockwise (when viewed from front of the car). See the Blue Arrow. So:

- When the Trans Flange 2a rotates, it transfers the torque to 2b which is mated with the driveshaft, thus the reason for the beefier rubber for this pair of 2a and 2b.

- Personally, I'd not worry about it because whether you line up the arrows or not makes very little difference to me because the whole unit works together as a unit.
Also, you would have to crawl underneath to go through this ordeal again.
Your Giubo may not last as long but what the heck, wait until the next time it fails then replace it. No big deal. Just enjoy the ride.
Also, you are from Down-Under, so you are allowed to do things backward LOL!!!

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Last edited by cn90; 01-06-2011 at 05:47 PM.
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