[quote=”Kokiboy” post=109712]As far as the condition of the axles thats on my car the only problem with it is the boots are dry cracked so should i just replace the boot or replacing the axles would be better since mileage is fairly up there. By the way its a 2003 hyundai elantra gls manual 5 speed
Quick question when should i worry about front bearings on my vehicle i dont hear any noise seems like there fine but being i have about 109875 on them should i change them or do they last the life of the car so i hear.[/quote]
Like I said, if the boots are torn open far enough to allow dirt and road debris into the joints, replacement is the best option. If the boots are still sealed despite any surface cracks, then it’s your crap shoot whether you want to replace or repair. It’s entirely viable you can get more long life out of the OE shafts if you want to do the work. Barneyb raises a good point about greasy messes though.
I won’t give you an entire repair how to, but keep these things in mind. If you do decide to repair, you will need a band clamping tool to seal the ends of the boots. There’s a good chance you can rent or buy the tool from a local parts store. Clean out all the old grease thoroughly. Then clean out all the old grease thoroughly. (not a misprint…promise!) Look for damage like chunking or galling of the balls, the races, and the cage. Any damage there would pretty much force you to replace them anyway. When installing the new boot, wedge a screw driver between the boot and the joint to keep the boot from holding too much air.
As far as wheel bearings go, their typical life expectancy is 130,000 miles. You don’t ever really need to change them before they’ve actually worn out. If you’re not hearing noises on turns or finding any play in the bearings, leave them be. You’d need to replace the hub and the bearing. Buying both parts combined, are pretty expensive to replace as a maintenance item. You’d also need a press device to press the parts out of the knuckle. There are tool kits available now that let you do this job on the car. Given the effort and the cost to replace the hubs & bearings, I’d let them fail first. When they do fail, you’ll usually hear it on the turn first.