EFFECTIVE WITH INTERIM 1985, THE INTERIOR CAB REINFORCEMENT FOR THE UPPER MOUNTING OF THE VERTICAL EXHAUST HAS BEEN IMPROVED (FIGURE NO. 1 SHOWS A TYPICAL VERTICAL EXHAUST). THIS CHANGE ELIMINATES THE TWO REINFORCEMENTS PREVIOUSLY USED AND REPLACES THEM WITH A SINGLE BRACKET, P/N 15530183. FIGURE NO. 2 SHOWS THE BRACKET INSTALLED, WHICH CAN BE ACCESSED THROUGH THE RIGHT HAND SPEAKER COVER. THE NEW PART IS A DIRECT REPLACEMENT FOR THE FORMER PART, AND SHOULD BE USED IF BRACKET REPLACEMENT IS NECESSARY.
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