I am a fan of used axles from wrecking yards if the boots are still in good shape for these cars. You cannot beat the original part quality and in most cases these cars are never scrapped because of bad cv joints.

When the axle is off the car flush or drain out the old lubricant and put new in. Get the used axle from the other side of the junk car compared to yours. New wear area goes into service that way as well.

The chinese axles have too many questions or isues and the new originals are too expensive.