Tractor I am only familiar with replacing the rear wheel bearings on a '98-'02 Corolla so I hope that this write-up is of use to you: First you jack your car up and for safety you place it on a floor jack . Then you remove the brake drum off . Once you remove the brake drum you turn your the bearing until the hole lines up with the four bolts that hold it.
Once you remove the bolts then you can remove the bearing , You might need a rubber hammer to tap it off . Then you get brake cleaner and spray the area to clean it up . Remove any grease there .
While you you are there check out your wheel cylinders for leakage and your brake shoes for any wear . Give them a lightly sanding if they look shiny. Compare the two hub bearing .
The OEM has a open back and the aftermarket has a sealed back. Right now is a good time to point out that going with OEM hub bearings is a better choice than after market because the quality is usually of a higher quality. Then you can put your hub bearing back on put some anti seize on the bolts then tighten and recheck .
Spin it . Put some anti seize on the studs . Put your brake drum back on and adjust your rear brakes if necessary.
Then put your wheel back on , make sure you tighten up your lug nuts and then you are done!
I would recommend that you get a chilton or haynes manual from a parts store. They will have a detailed proceedure for exactly how to do this. It may be that you failed to grease pack the bearings correctly.
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