Hey guys...I put on the rock rings on my pro comp rims and now that I got them on I noticed I will not be able to use my Staun tire deflators since the valve stem is behind it...SO I need some extensions I guess...The plastic ones dont have the threads to screw the Stauns on so I assume I'll have to get some metal ones....I Googled and all I see are ones for RV's are these OK?? or if anyone has a recomendation would be great. I'll just have to screw them on and off when wheeling...Thanks.