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Rear differential rebuild?

This is a discussion on Rear differential rebuild? within the Chicago Auto Shops forum part of the Chicago Cars category; I did some internal swap in my rear differential, and now it's making a whirring noise.. so it looks like ...



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Old 07-10-2007, 04:15 PM   #1
kein Dummkopf
 
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Rear differential rebuild?

I did some internal swap in my rear differential, and now it's making a whirring noise.. so it looks like I fubar'd the shims. Anyone know any shops around here that can overhaul differentials?
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Old 07-10-2007, 04:20 PM   #2
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damnit

superior driveline on north ave (near you) is supposed to be quite good. call 'em up... see if they'll help out.

However, consider that you are using the bearings from the j30 diff with unknown miles. it could be a bearing issue, not a shim issue
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Old 07-10-2007, 04:33 PM   #3
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you think bad bearings would cause that awful whirring noise? it's speed dependant
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Old 07-10-2007, 05:20 PM   #4
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Bearings could, but I'd wager on shim issues/gears not aligned properly. Check out multistate transmissions on ogden in naperville (across from Gerald nissan), ask for Chris Jennings, and tell him I sent you.
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Old 07-10-2007, 05:21 PM   #5
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bam! diffHerpes!
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Old 07-10-2007, 05:24 PM   #6
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bugger
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Old 07-10-2007, 06:35 PM   #7
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is it a LSD?
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Old 07-10-2007, 06:37 PM   #8
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yeah, that's why i did the internal swap, but only a viscious type, the lsd is all contained in the unit
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Old 07-10-2007, 06:42 PM   #9
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Did you put LSD-specific fluid in (stupid question?)
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Old 07-10-2007, 07:09 PM   #10
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doesn't need it, since the limited slip portion is sealed
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Old 07-13-2007, 08:22 PM   #11
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Is this fixed yet, boner-boy?
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Old 08-07-2008, 12:27 PM   #12
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Sounds like you didnt check the for proper tolerances on the diff. I know Touge Factory used to install diff internals, but as far as overhaul you have to find a good shop that specializes in it.
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Old 08-08-2008, 11:48 AM   #13
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old thread, it's fixed now btw
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Old 12-20-2009, 09:31 PM   #14
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actual diff overhauling is not that hard. Just need to know the specs and know how to read painted gears.

I accept bench work (meaning bring me the rear end and I will set it up )

My poor dial indicator has not seen action in quite some time.
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