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Old 08-21-2018, 01:46 PM   #1
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2005 SMB E350 rear diff question

I've got a little issue with the rear diff on my 2005 SMB 4X4. Not a full float, just the basic as it came from SMB West.

My mechanic found a bunch of metal shavings and nasty bits in the diff and would like to replace some things, but doesn't think it's the stock E350 diff.

Any thoughts, I did a search but couldn't find anything specific on the forum.



2005 SMB RB 50 4X4 w/ a 6.0 PSD
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Old 08-21-2018, 02:13 PM   #2
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You can run your VIN number through a VIN decoder like this one to determine what was stock.

No matter what it came with, he needs to determine what you have in order to get the correct parts.

Dana 60 BOM Numbers | Dana 60 Identification

Arctic Traveller
2001 GTRV
Advanced 4wd
Agile Ride improvement package
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Old 08-21-2018, 04:06 PM   #3
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Why doesn't he think it's stock?
2000 E450 dually V10 wagon
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Old 08-21-2018, 04:22 PM   #4
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Time for a FF? It is a bit more to build out a full float, but it’ll be money well spent.
'03 Ford E350 7.3L Diesel
(de)SMB'd Custom RB-50
Quigley 4X4 w/Deavers & Agile Offroad's R.I.P. package
CCV High Profile Pop Top
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Old 08-21-2018, 06:06 PM   #5
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The only reason I can think of that your mechanic might not think it's stock is that if it's an SMB 4x4 conversion they move the lower shock mounts.
2005 E350 RB 6.0 PSD for extended fun
1989 Landcruiser FJ62 for local fun
2011 VW TDI Golf for hwy fun
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