Searched the forum, but didn't find my particular question: Here it goes:

I changed my oil and noticed that grease was leaking from the outer boots where the axle enters the boot. The boots seem to be intact. I suspect the axles need to be replaced anyway. Where is the best place to buy reliable axles, and are they a Ford part? Mazda5 parts seem to demand a premium compared to other vehicles.

My car is a 2013 Mazda5 Grand Touring. Thanks