How do you get the LCA shafts seated correctly?
 

Just like the title says got my new arms and trying to get it seated correctly, but having some problems, i know the LCA shaft has 2 dimples, and on the cross member, it like has the 2 nipples, but have a hard time getting them on.
Im going to try again tomorrow but, if yall have any helpful hints ill appreciate it
if pics needed it will post em thanks