Guess I'm late to get in on this but that's ok. Unless you bought them from Mike I would take a good look at what ever you buy.
Here are some of what I've seen from various suppliers and from what people bought and sent to me.
Front bushings- sleeves cracking,ID too small,cups made of cheap steel
Bearings- Timkens from a chain store, made overseas, other brands just plain cheap. Seals, flat edge that roll,common in bearing kits.
Shims- overpriced and not machined worth a damm. Don't come close to dialing in to 0015-002"
Parkingbrake kits- I machine parts of them.
Backing plates, some have hole patterns based on Bonney & Cydes last car.
Arms, I only use USA arms it needed
Spindles- same as arms
The parts I have now all work and I only use them. I don't take in jobs with parts too much because of this headache.Plus the owner usually gets ripped off anyway. Like the time a guy send me his parts he got a great on from fastcorvette,you guys remember that place, still around under a new name with great deals! Well I totaled up the parts and found they only doubled billed him by $400!!
Lastly if you are looking for a complete arm set really check them. I walk around every year and look at them. Some are so tight they're going to burn up other so loose you have to wonder if the builder is moron. I think so but you have to judge for yourself!!
Steering boxes another great item,most are junk but painted very nice.
Differentials,... oh forget it, those are so hacked up I just walk by.
Good luck!!