I am doing a hub seal replacement on my old Landrover.  Sadly I screwed up the new seal by putting it on too far, and then by trying to tweak it back out I wrecked the tension spring inside the seal.

It'll be a couple of days before the Landy specialists are open and I can get another seal.

The upshot is that I can't put the roadwheel back on because the whole rotating bits are in pieces.

Should I reassemble the bearings and the brake drum and the other lumps of steel, fit the road wheel, and lower it down?  Or can I leave the vehicle on the jack for a couple of days?

For safety I've put the roadwheel on its side under the chassis rail.

The jack is a screw-type from a toyota 40 series, not a scissor jack and not a hydraulic jack - ie you have to turn the handle to raise and lower it.

Vehicle is parked on a level concrete pad on private property and there's no significant risk of pushing it over.

Question is similar to http://mechanics.stackexchange.com/questions/17637/leaving-vehicle-on-4-jack-stands-several-days but its about ONE jack not four jackstands.

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Edit - yes I could go and buy jackstands.  That's a good solution, but the question was specific about a jack and its ability to bear load for a long time.  

I wouldn't carry jackstands on an off-road trip - they'd be at home in the garage.  So one of my background thoughts is always **"can I do this repair with what I carry normally?"**  I always carry the jack.

Here's the stub axle in the wheel well - there is nothing there that can hold the road wheel and nowhere to attach the wheel.  The big black circle is the backing plate for holding brake shoes.

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