Anyone else using difftechnics diff kit? I'm having vibration dramas. Help?

[foowoei69]

Hi guys,
I made a post earlier on about installing my diff kit.
After installing the diff kit at my mechanics I drove home. There were a few crecks and noises here and there but I didn't really pay attention to it. Untill I got on the free way. It started vibrating like mad... I called my mechanic and took it bAck to him. He told me that the cvs and unijoint are all stuffed or worn and need replacing.
But when I ask difftechnics about it he was adamant that there's nothing wrong with the kit.
Now the car is at home in the garage waiting for difftecknics to get back to me.

What do I do now. I want my car fixed. If I knew there was goin to be this much trouble with the kit. I woulda just spent the 2k on fixing my current stuff and just make do. But now I'm out of pocket 2k with 2 sets of diffs and shafts that are all stuffed..
Kon at difftecknics says he's chasing it up. But he's been flat out and under staffed. But dosent have time to check it all out. And I've been waiting for almost 2 weeks now since it's been installed. And it's still just sitting there.
I want my car running properly so I can enjoy the bloody thing.
Don't know what to do now. Any ideas guys? Suggestions or help of anysort will be much appreciated.
Thanks

Hey guys,
Completely forgot I posted this.. Remembered lastnight before bed when I was looking for an LSD.
Anyways I finally got a refund on all the previous shafts and ended up upgrading to the 1000hp items they said that's their only other option. I've now seen 2.8 rated shafts from driveshaft shop, which i believe is where my 1000hp items are from, they did say they were coming from the states. Anyways
So I had everything installed without much dramas this time.. Except that I forgot to get my original hubs back... Everythings been running sweet for the last few months now.. No difference in balance as alot of people have feared.. Difference in diff for sure. Seems to have more traction even though the diff seems sort of worn. happy Jan!! Now I Can't wait for a proper LSD.
Got a spare 4.4 sitting on the floor in the garage and will have that one rebuilt and swap it over soon.. The 4.4 is a much nicer ratio to play with..

I'll add fotos and stuff in another post at a later date.. Still don't know how to add photos on the iPhone and don't have access to another form of Internet access ATM.