Ummm.... it's a basic onroad pan car axle. If you search the Associated (www.rc10.com
) and look at the instructions for the RC10L series of car you can see an exploded diagram of how it goes together.
Maybe if you can be more specific about how the wheel comes off, which wheel comes off, we can figure out the problem.
Secondly, i think those are RC10 tie rods? They were long enough, even length and in my tool box. Best i can tell you there. Traxxas makes some but they are 5-40 threads and typical AE cups are 4-40 thread. Little drill bit action will make them big enough. I've used that setup on some other projects.