Just noticed my front left birf seal is leaking to the point where there is grease on the tire now. How much of a pain is this to do and what are the parts I need to do this? The other side will need to be done at some point too but its not an actual leak like the driver side. Anyone want to help me with this towards the end of the month? I'll buy lunch and we can use the lift/tools at the shop I work at.