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Replaced my driver's side axle / driveshaft with a new one after I started getting vibrations while accelerating. Solved the vibration problem, but a few hundred kilometers later my gear box seized up. Replaced the gear box with one from a junkyard, drove about 150 kilometers and the next day while driving around my parking lot the shaft just popped out of the gear box. Parts shop swears it's the right driveshaft. With everything fully assembled I can easily pull the shaft cup out of the gear. That doesn't seem right, but I'm wondering if someone with more experience with Ducato gears and axles might be able to comment. I've been told that it's normal for Ducato's not to have retainer clips on their axles, so I'm wondering if this behavior is normal, because usually a bit of effort is need to pull an axle out of a gear.

I uploaded a short video showing the problem here.

EDIT - The Gear side of the axle

enter image description here

Robert S. Barnes
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So I found out what the problem is:

inner axle joint with spring

The inner axle joint is supposed to have a spring in it that keeps pressure on the cup to keep it in the transmission.

When my truck was loaded on the tow truck, they ripped the boot on the inner axle. When the guys who replaced the transmission went to replace the boot before installing the axle, apparently the spring fell out without them noticing...

Here's what it's supposed to look like installed:

enter image description here

I would have thought this would have been the first thing to pop into the head of the guy who replaced the transmission, but... oh, well.

Robert S. Barnes
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