How do i know if right front axle needs replacing?

Hello, if the boot is only seeping grease, it is likely you could merely replace the boot and all would be fine. However, it's important to note that it might be more cost (and headache) effective to replace the axle itself with an axle that has already been remanufactured with good joints and boots. Installation is the only thing needed. A boot that is leaking may or may not be allowing debris into it to contaminate the joint. Difficult to know until tear down is performed. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.