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Old 05-31-2011, 08:01 PM   #1 (permalink)
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Ghetto 404 hub removal for Dummies

Ok, since this was brought up recently, I though I would share ONE of my methods for removing the hubs from a 404 portal box.

This removal requires special mercedes tool U1300L or suitably large tool.

Basically, you first remove the big ass center bolt, then disassemble the portal box removing the outer case from the inner.

Once its all apart, you should be left with just the hub flange, the lower output gear and the outer case.

Bolt the hub back into your tire and wheel. Then lay this assembly portal down under your "SPECIAL TOOL" (see pics for special too U1300L) Then set a large socket, in this case a hub socket with the teeth missing, on the end of the drive flange making sure it will fit inside the splines with out touching the flange splines themselves. Then place a heavy bottle jack between this socket and your "special tool". Now start the jacking process while staying clear of the "special tool". An air over hydro jack works great for this. Soon, you should find your hub and portal output gear easily separated.

If you have trouble, you either need a heavier "SPECIAL TOOL" or you may need to apply light heat to the hub flange to allow it to expand slightly. Again, stay clear of your special tool while doing this.

Anyways, hope this helps some of you in a pinch.

PS, I had to tear down 1 of 2 of my portal boxes today due to severely worn/damaged large lower bearings and leaky output seals. FUN FUN FUN. Only took about 30 min to get it all off and torn down for inspection including removing the hub.

PPS, sorry I took the pics after pressing the hub off. So imagine the the wheel bearing socket sitting exposed under the jack until you finish the pressing process.
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Last edited by DokaTD; 05-31-2011 at 08:05 PM.
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Old 05-31-2011, 08:28 PM   #2 (permalink)
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Very Cool!

On a side note: Sometimes I forget I'm on a mercedes Forum. When I saw an ad for Pottery Barn I thought, don't they know we're a bunch of redneck wheelers. Then I thought, well we own their benchwright dining room furniture, so I guess it even works advertising to some of us moggers!
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Old 05-31-2011, 10:06 PM   #3 (permalink)
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I think it would be SIGNIFICANTLY cheaper to just rent the tool from one of the vendors...

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Old 06-01-2011, 04:02 AM   #4 (permalink)
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I think it would be SIGNIFICANTLY cheaper to just rent the tool from one of the vendors...

DokaTD may put it in the 'lend a tool' thread!
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Old 06-01-2011, 06:10 AM   #5 (permalink)
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How does that old chestnut go, with a lever long enough and a place to set it...

On a side note I don't think you can stow MB tool U1300L in the 404 tool kit, making field repairs troubling.
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Old 06-01-2011, 07:26 AM   #6 (permalink)
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But could you not store the 404 in the 'special tool'?
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Old 06-01-2011, 11:49 AM   #7 (permalink)
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But could you not store the 404 in the 'special tool'?
Indeed sir!
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Old 06-01-2011, 12:01 PM   #8 (permalink)
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I really wish the bed of m 1300 was just a bit longer cause I would love to have the option of putting my 404 ont he back of the 1300.
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Old 06-01-2011, 12:05 PM   #9 (permalink)
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Like this? What is that a rover?
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Old 06-01-2011, 12:18 PM   #10 (permalink)
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Thats a Land rover 110
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