Shower Door Adjustment

[rpcarlson]

I am unable to adjust the shower door on my 2005 28W Safari so that the bottom doesn't drag in the opening. The dealer has adjusted it twice and it comes loose. Does anyone know what hardware is used to secure the top adjustment? I see a jam nut that rides in the top channel that allows a threaded screw into it. I am unable to get enough torque to hold this after a day of driving. Is there another part that is missing?

[vswingfield]

Try Loctite blue: Loctite Consumer Retail Products | Product Detail on the threads. Great stuff, you won't know how you lived without it. Color is important, red is just about permanent requiring a torch to get loose. Every car parts store will have it.