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      06-22-2023, 02:58 PM   #1
B58 parts
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Drives: '17 340ix 6MT
Join Date: Nov 2017
Location: US

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Driveline fluids DIY service?

Looking to do a fluid change myself on

- 6mt
- front diff
- rear diff
- transfer case

The first three look pretty straightforward , just the old fill and drain plug. Transfer case looks to be more of a pain, I don't think I'm going to remove it I might do four or five partial changes on it using a siphon.

I had a shop to the first three at 30k and I'm at 75, so about time. While I'm in there I might try the transfer case. I'm getting a weird little wobble from the left front under acceleration rarely, i don't like it, feels like the diff. It's a walk feeling.

Any tips from anyone who's done any of this, and what fluid do you all use, and how much. I think OEM is probably not what I want, I want the good stuff. Thanks in advance
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