GMC 1116423 Regulator,Voltage

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Remove the alternator from the vehicle. Scribe a match mark on the front and rear end frame housings of the alternator to facilitate reassembly. Remove the four throughbolts holding the front and rear end frames together, then separate the end frames. Remove the nuts holding the stator to the rectifier bridge and separate the stator from the end frame. Remove the screw attaching the diode trio to the end frame and remove the trio. Remove the screws retaining the brush holder and resistor (if equipped) to the end frame and remove the brush holder. Remove the voltage regulator. Installation is the reverse of the removal procedure, noting the following. When installing the brush holder assembly, press the brushes into the holder and insert a straight section of wire, such as a straightened paper clip, through the rear of the end frame and through the holes in the brush holder to hold the brushes in while reassembly is completed. The paper clip should not be removed until the front and rear end frames have been bolted together.