Power steering shaft

There is a plastic like stuff that the factory injected into the steering shafts so if you get in a accident it collapses. I wish I could tell you how to fix it I have heard of ppl drilling a hole threw both shafts and put a plastic pin in it to hold it. Mine slides in and out also but the stuff they put in there makes it hard to push/pull it I`m putting a flaming river U joint and shaft in my car so its not such a big deal.