"TRANSMISSION INDICATOR: HOUSING, POLYCARBONATE, BLACK; LENS, POLYCARBONATE, CLEAR, 0.060 MIN THK; POSITION STRIP, POLYCARBONATE, CLEAR, VELVET/MATTE FINISH ON TOP SURFACE,0.010 MIN THK. TRANSFER CASE INDICATOR: MARKING PLATE, 0.032 MIN THK. BOOT: LATEX RUBBER, WALL THK 0.040. ELECTRICAL COMPONENTS SHALL BE WATERPROOF; ALL STEEL PARTS (EXCEPT TOP PLATE) ARE ZINC PLATED"