What is the application for?
Don't waste your time with anything older than what 85'? the small bolt hole style ones arn't as desireable.
I used an ifs cv and clearance it for my rear driveline and it runs perfect. On the front i run non cv.
Both are awesome, and run with no vibrations.
Clearanced vs non clearanced front ifs cv's
![](http://i1047.photobucket.com/albums/b477/Dingman90/IMAG0064.jpg)