General Motors GM-38758 Parasitic Draw Test Switch Shop By Category > Hand Tools > Reamers > Critchley >Spiral reamers Allison ATT-24171-A 2-1/2 Lb Slide

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General Motors GM-38758 Parasitic Draw Test Switch Shop By Category > Hand Tools > Reamers > Critchley >Spiral reamers Allison ATT-24171-A 2-1/2 Lb SlideGeneral Motors GM 38758 Parasitic Draw Test Switch Kent Moore Tool Number: J 38758 The GM 38758 Parasitic Draw Test Switch is designed for use across all GM platforms to help pinpoint parasitic current draws with precision and ease. Used in conjunction with an amp meter, this tool connects between the vehicles negative battery terminal and the battery post. After conducting a road test, an amp meter is connected to both sides of the switch, allowing