Quote Originally Posted by Hobby Racer View Post
Unfortunately most aftermarket CV joints are NOT the same and not compatible with the OEM ones. They have the same spline configuration but not the same tri-lobe setup as you have found out. I had to go to my local NAPA store and physically look through ever Subaru Impreza CV joint to find one that was rebuilt using the green OEM CV cup and therefore had the correct tri-lobe.
Wow, that sounds difficult. It's hard to believe there is not an after market CV axle that fits. They look so similar...