When replacing my CV Axles, I popped this baby out, then broke the boot trying to get it back on, and messed up the threads. It's on, but not completely, which means at any time it'll come flying off, causing me to go careening out of control on the freeway. Is this an inner or outer tie rod end, and, what's a good replacement? Also, what the heck tool do I use to get it back on, it just spins and spins and spins.
*Edit -I really don't know what part it is.