what do i have to do
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2005 Toyota 4Runner Question: what is the problem when there is a leak on my front axle left side
mastertech6371 October 14, 2011, 09:25Master
replace the axle shaft. todays, it is better to replace the axle as it gives you a lifetime warranty on the part.
replacing the boot is cheaper but in most cases, the lack of grease has damaged the joint.
Answer #2paulsjapanese from Paul's Japanese Auto Repair & The Brake Stop, October 19, 2011, 14:50Technician
Could be a leak from the differential seal (output seal) This could cause damage to the front gears and bearings. Could also be axle shaft its self, leaking grease from boot. In either case, an inspection would be required