What is the issue with the stock ballcups? will any others fit without replacing the balls?
Build the stock HD ballcups that come with the car first...do it the way they suggest on the Team Durango website... here >
http://www.team-durango.com/blog/201...e-build-guide/
IF it doesn't work for you, then feel free to change the ballcups. no sense spending $$ on unnecessary parts if you dont have to.
MY stock ball cups are fine, some people have had major issues with them.... there may have been an issue with the early run of the cars having bad ballcups.