A1 Cardone as sold by Rock Auto are good, I bought the pass side and very surprised at the quality vs. the low price I paid. Excellent part and running for a while now. Can't beat $50 for the entire NEW axle from trans to wheel.
There are two arms to the A1 Cardone, one is all new manufactured and the other is reman/rebuilt ones... I cant recall what tips off which is which. Also Rock auto has a 5% discount code available for members of the forum. Rockauto has great customer service and I order most my parts through them, only parts I get else where are when I need them faster.
The only thing that Rock auto has lacked IMHO is the shipping costs and times. and this is more from Amazon's 2-day free shipping than anything else, but the costs and the delivery times sometimes brake the cost of a good deal and might as well just pick it up at the store and pay sales tax on it.
Be careful where you buy. I have a leak at the axle, even though I had a new axle seal installed. Some of the remanufactured axles have wear on them that causes leaks around the seal. I've only used a Motorcraft axle once since they're more expensive, but it didn't leak around the seal, either.
In my experience, it rarely pays to purchase a rebuilt or remanufactured axle assembly. New axles can be purchased for as low as $50 depending upon application and rebuilt or reman axles are, in most cases, within 10-15% of a new axle price. In my many years of German car work, one cv joint alone (at the dealership level) cost within 15% of a new axle assembly, plus the additional labor to disassemble the cv joint/stub end and put the new part on and lubricate the joint/end.
New is better. I have trouble going with rebuilt as they can try to reweld up the worn slots in the outer CV joint housing to then remachine out and no way will a rebuilder have the quality there a new part brings. And then they grind off part of the OD of the seal area to clean it up and then seal can leak since not grabbing as tight or not at all for a colossal leak. Of course they don't bother to OD check the work for spit at those low Chinese prices.
I've even seen new for cheaper than rebuilt lately and just plain wonky that.