TC3 CVD and Outdrive Question
If you want to spend a little cash, I just purchased the niftech pinned outdrives and notched diff rings. Along with that, I also purchased their inner diff assembly. From Acerracing, I purchased the ceramic diffballs for the whole assembly. Although Niftech didn't recommend the ceramic balls, I installed them anyway. I found my diff to be EXTREEEEMLY smooth, and it helped my setup considerably.
I've also tried the IRS composit dogbones. My recommendation...don't do it. Whenever I rubbed the wall it broke where the pin attaches to the outdrive. I upgraded to the IRS Big DAWG bones and have not had a problem since.
I had the steel outdrives before my niftech purchase, so I definately lightend my drivetrain, however I'm sure it's not as lite as it would be if I had composit components.
My2cents. (but w/niftech, it's more like 4cents.)