Do you have to service a detroit locker - Defender Source
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Old October 29th, 2008, 09:54 PM
RickM
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Rick Mabus
95 D-90 ST
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Do you have to service a detroit locker

I washed with great care my truck this past weekend and before that I had been driving it around without a care in the world and so thankful I have had such a treasure to tool around in with the fall weather. Anyhow today went to take the kids to braums and got this strange noise driving along much like I was dragging a office chair rolling on plastic casters. Anyway I have put a locker in this truck and it has been perfect. The noise is not engine related it is only when the truck is rolling and does not change with rpms only movement. I am concerned that I have been negligent about servicing my locker or that maybe a bearing has gone out under the belly of the beast.

Any ideas on the locker or the noise would be forever appreciated.
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  #2  
Old October 30th, 2008, 12:17 AM
rmuller
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Ryan
1966 S2a 88" | 2006 LR3
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First, definitely check the diff fluid level... make sure it's filled up.

Second, there are 4 bearings in the third member... 2 on the carrier and two on the pinion side... either one of them could be going south... jack the rear of the truck up, remove the rear driveshaft, try spinning a tire, see if you are still hearing the noise... if you do, pull the third member and inspect it..
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Old October 30th, 2008, 10:29 PM
RickM
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good ideas

Thanks.
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  #4  
Old October 31st, 2008, 02:47 PM
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Red90
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John B.
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I doubt that the sound it from the locker. A bad bearing will translate into "gear" noise that is only audible on or off power.

The locker itself, you should hear click if you listen carefully in a tight turn. It is either alive or dead...

There is nothing to do other than maintain the diff fluid as per the standard diff.

Like I said, your description makes me want to look elsewhere.
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Old October 31st, 2008, 03:27 PM
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" like I was dragging a office chair rolling on plastic casters"

Bad wheel bearing.
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Old October 31st, 2008, 09:14 PM
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That's the best description of a wheelbearing I've ever heard.

Now I'd like to come up with one for the nut job who pulled in with no brake pads in the stuck rear caliper and the rotor worn down (by the caliper piston that was also almost gone) after "one of those other shops" had told him the rear diff was shot.

Sort of sounded like the office chair had been dragged for a few hundred miles with a large person sitting in it.

Hate to agree with Ron.... but will have to all the same....smile;
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