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Rear Diff Motor Replacement

  #1  
Old 06-03-2019, 08:37 AM
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Default Rear Diff Motor Replacement

I am about to embark on the replacement of the locking motor for my rear diff. Does anyone have any good hints as to how best to do this?

I've seen a variety of methods listed from going in through the DS rear wheel well to coming up through the spare tire space and removing this, that and the other.

I know that LR techs will drop the diff. I hope to avoid that.

Thanks.
 
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Old 06-04-2019, 11:52 AM
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LR techs don't drop the diff. You can get to it from below. Spray the connector down with brake cleaner then a little wd40. It can be hard to turn(its one of those 1/4 turn style connectors that are on the trans).

I believe its 4-8mm bolts. A little tight, but not terrible.
 
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Old 06-04-2019, 02:35 PM
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Originally Posted by abran View Post
LR techs don't drop the diff. You can get to it from below. Spray the connector down with brake cleaner then a little wd40. It can be hard to turn(its one of those 1/4 turn style connectors that are on the trans).

I believe its 4-8mm bolts. A little tight, but not terrible.
Thanks for the info. Have you actually done this yourself? (no offence - but just looking for someone who has been and done). Any tips for tools, etc.?
 
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Old 06-04-2019, 04:22 PM
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Hahahahahahahaha........
 
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Old 06-04-2019, 04:25 PM
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I've done it at least 5 times. I have used a small set of channel locks to turn the connector, but be gentle to not break it.

I think the connector is the hardest part.

A U joint 8mm socket might help get the 4-8's.

Here is a photo of one we have on the shelf:
 
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Old 06-04-2019, 04:27 PM
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Old 06-04-2019, 04:39 PM
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Originally Posted by houm_wa View Post
Hahahahahahahaha........
what? you doubting him doubting me... I doubt it!!!
 
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Old 06-04-2019, 04:40 PM
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Originally Posted by Philip Chan View Post
Thanks for the info. Have you actually done this yourself? (no offence - but just looking for someone who has been and done). Any tips for tools, etc.?
And to clarify, I run an indy shop and we pretty much specialize in LR3s, and I drive an HD.
 
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Old 06-04-2019, 04:40 PM
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Connector for reference:

 
  #10  
Old 06-04-2019, 07:51 PM
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Hey - thanks for this. I only asked not because I doubt you, but there's lots of info on here and other places from people who have not done it - just read or "heard about how to do it". I value the advice, but need to know if coming up from underneath it's doable - which it seems it is. I will have to give it a look because I didn't think it possible. But what do I know...
 

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