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Old 09-05-2021, 06:27 PM
Join Date: Jun 2021
Location: Salt lake city
Posts: 21
Briansbummerbmw is on a distinguished road
2004 x5 3.0 Driveshaft problems

So I replaced the rear propeller drive shaft and center bearing with a Cardone rebuilt from rock auto couple years back. It went bad in about 15,000 miles. I installed another and it went bad in about 10,000. I assumed that the CV joint at differential was pregreased.
When I took the first one apart after it went bad it was dry and the bearings had worn holes in the assembly. I haven't taken the most recently failed one apart yet but I think it will be the same. I'm thinking I was supposed to grease it prior to install. I find that assembly with the 6 bolts super confusing and hard to hold together while starting the bolts and I didn't want to separate it and chance dropping the bearings and what not to add grease. I dont have a lift so I'm just an old dude painfully rolling and crawling around on the floor for the install. Getting ready for 3rd attempt with another $450.00 shaft. Does anyone have any thoughts? Really down in the dumps at the prospect of doing it again.
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Old 09-05-2021, 10:13 PM
Join Date: Jun 2014
Location: Omaha, NE
Posts: 1,506
cn90 is on a distinguished road
- Yes, you need to add grease for the REAR CV Joint of the DS. I use Castrol HD Grease.

- Do not forget to "preload" the CSB 3-4 mm or so. Do this after all the other bolts are tightened, i.e., this is the LAST step.
1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
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Old 09-05-2021, 11:03 PM
Join Date: Jun 2021
Location: Salt lake city
Posts: 21
Briansbummerbmw is on a distinguished road
Got it. Could you explain the preload concept more? I know it's that carrier bearing. Do I push the shaft in one direction or another?
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