Date registered: Sep 2005
Vehicle: 85' U1300L Holset Turbo VA A/C, 66' Propane 404.1 rock mog, G500, Volvo C303
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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.
FOR SALE: 1985 U1300L 200HP $50,000
FOR SALE: 1969 404.1 crawler mog $25,000
Last edited by DokaTD; 05-31-2011 at 08:05 PM.