transverse portion 50 are two gasket bolt receiving holes 64 gasket 66 abuts bracket 12 holding bolt 70 extends laterally through transverse portion 50 gasket 66 and washer 72 before being locked into place by holding bolt nut 74 in this particular embodiment holding bolt nut 74 engages bracket 12 on the inside surface 76 of transverse portion 50 gasket 66 has an inner section 80 an outer section 82 u201c inner u201d and u201c outer u201d in this respect refer to position relative to the transverse portion 50 each of a radius r1 and a central section 83 of radius r2 radius r2 is less than radius r1 thereby establishing a depth of channel 84 between the inner perimeter and outer perimeter 80 82 channel 84 has a lateral floor 86 with a width configured to snugly engage the either top slot or bottom slot 32 34 to provide the snug engagement a resilient material such as rubber or urethane is desirable for the gasket 66 two gasket receiving holes 64 are dispensed along transverse portion 50 such that the tops of the lateral floors 86 of channels 84 of upper gasket 66 a and lower 66 b define a distance h2 such that h2 is substantially equal to h1 as shown in fig4 brackets 12 are installed in pairs to create system 10 to accommodate windshield mounting mechanism 28 when installed on vertical surface 58 upper gaskets are canted toward each other the closest distance between lateral floors 86 of top gaskets 66 a is w2 while the closest distance between lateral floors 86.