I have ordered TPMS sensors to install in the Cadillac accessory polished aluminum wheels I just got, but I don't know if there is a trick to installing them. I'm guessing the valve stem portion goes through the hole and a nut is placed on the outside, but there is a required gasket kit also. I can't find the proper torque spec for the nut. Has anyone done this that can offer some tips? Maybe it's self-explanatory when you see the parts.... Thanks!