While replacing the passenger side rear axle ball bearing at the swing arm, I accidentally let the wheel carrier drop too far down and it resulted in the output shaft sliding out of the differential about 3 inches, not all the way out as the flange splines were not visible. I pushed it back in and the joint between the differential and the output shaft now looks like the driver side - it's all the way in now. While sliding it back in, I didn't hear the snap ring snap into place. Or may be it didn't snap out? Should I be worried?
part #1 RealOEM.com - Online BMW Parts Catalog

Thanks!

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'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M.