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Old 06-18-2016, 11:52 PM
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Transfercase input shaft needle bearing

I'm trying to find a part number for the 2001 3.0 BMW X5 - NV125 transfer-case, Ring Gear needle bearing for the input shaft. I know it's not HK5020, that is the other one, not inside the Ring gear and is 2x the size.


Thanks in advance.





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  #2  
Old 06-19-2016, 09:20 AM
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I tried and tried to find diagrams from the now-defunct New Venture. Never succeeded. The only place I know that sells the internal parts is Cobra Transmission and they don't post the diagrams online. If anyone runs across a full diagram or parts list, please post it...
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Old 06-19-2016, 03:05 PM
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HK2526 (about $20) for the bearing or this for a kit BK516 ($107)(make sure for a BMW not a VW)
NP125 NV125 Transfer Case Bearing Kit
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Old 06-20-2016, 04:35 AM
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Quote:
Originally Posted by PR1AWRet View Post
HK2526 (about $20) for the bearing or this for a kit BK516 ($107)(make sure for a BMW not a VW)
NP125 NV125 Transfer Case Bearing Kit
Thank you, I wasnt sure if it was that one or the HK2020.

I already got the entire kit plus more. I went for the FULL rebuild including a new Planetary Gear and chain of course. The small bearing was damaged when pressed in. Everything else has gone good so far except trying to remove and put the Planetary Gear bearing clip in place is a PITA.

I found the HK2526 on amazon for $10 and ordered it one day rush for $3.00 extra. Thanks again.

The old chain had just a LITTLE slop to it.
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Old 08-22-2023, 02:52 PM
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Quote:
Originally Posted by PR1AWRet View Post
HK2526 (about $20) for the bearing or this for a kit BK516 ($107)(make sure for a BMW not a VW)
NP125 NV125 Transfer Case Bearing Kit
Anyone tried this kit? Seems to be super cheap compared to cobra transmissions and ebay.
I meant just the bearings are normally $200, and here both bearings and seals are $100
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Old 09-04-2023, 11:55 PM
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Did you ever buy the kit? As long as the components aren't made in China it should be ok.
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Old 09-05-2023, 12:40 AM
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Ordered these parts:

Extended shaft

https://www.ebay.ca/itm/223545720377...mis&media=COPY

New chain
https://www.ebay.ca/itm/321186947698...mis&media=COPY

Bearing and seal kit. I'm waiting for it to ship, they're missing a seal before they can ship it.

https://www.ebay.ca/itm/285416192375...mis&media=COPY
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Old 09-05-2023, 12:44 AM
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I thought now that I have subframe and exhausts out, might as well remove the transfer case. And if I remove it, might as well rebuild it. When will be the next time I feel like removing the transfer case? Never!

Now too bad that ecs tuning didn't release the rear locking differential yet, would be great to get that done all at the same time as well!
https://youtu.be/6jqWlS86UKw?si=fN4iWIVgpUlWCzkU
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Old 09-06-2023, 10:47 AM
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Quote:
Originally Posted by Bmwe5320023.0 View Post
I thought now that I have subframe and exhausts out, might as well remove the transfer case. And if I remove it, might as well rebuild it. When will be the next time I feel like removing the transfer case? Never!

Now too bad that ecs tuning didn't release the rear locking differential yet, would be great to get that done all at the same time as well!
https://youtu.be/6jqWlS86UKw?si=fN4iWIVgpUlWCzkU
Great thread, thanks all. My general plan is to get a donor xfer case and rebuild it in my new workshop at my leisure, so this has been a good education. That ECS locker seems like a great solution too, so happy you posted the link. They need to put that into production. Assuming they do, and it proves durable and trouble-free, Iíll add a used rear diff to my parts pile and rebuild it too, with the locker.

A locker would be very helpful on my x5 when Iím on winter farm and unimproved roads. I had a come-to-Baby Cheeses moment hunting last winter when I turned onto a dirt road that looked fine, but was ice over mud. The DSC was blowing up on all 4 corners trying to simulate a locker(s).

His latest video sort of lost me though as heís gone into some really amazing mods, but clearly has unlimited money for the project. The design and craftsmanship skill on the X5 is really nice. Itís also nice they picked the e53 to mod.

Edit: forgot to add that the Detroit lockers, ECS guy made arenít called ďratchet lockersĒ for nothing. The noise they make when unlocking can be pretty annoying. They can also introduce some extra lash into the drivetrain due to their design. Super sturdy and durable tho. Torsion diffs are available that will fit the e53 too.
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Last edited by Henn28; 09-06-2023 at 11:24 AM.
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