DB9 Top Gear Track
AO Silver Member
Join Date: Jan 2007
Location: United Kingdom
County: East Sussex
The wheel bearing does indeed bolt onto the upright, however the hub (the thing you bolt the wheel to) needs pressing out of the old bearing first.
Once the hub is off the 4 bolts that hold the bearing can be a pig to undo, once your new bearing is bolted on the hub needs pressing back on....all while deperately avoiding damage to the ABS sensor. You could try removing the ABS sensor first, but they have a habit of breaking. They're around £50 each.
You'll need a thin walled 36mm socket and a long breaker bar to get the hub/driveshaft nut undone, I put the spare wheel on and loosened it with the car on the ground. Remove brake caliper (cable tie it up out the the way and avoid stressing the pipework) and carrier and brake disc, split upper and lower wishbone balljoints and track rod (steering arm) balljoint and remove driveshaft nut.
I then took my uprights to a local garage and got them to fit the new bearings as I don't have access to a press. Then I bought a new ABS sensor as they had to use so much heat to remove one of the bolts it melted one of them.