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Re: GMC W4500 diagram
Posted to Technical Discussion Forum on 4/29/2004 2 Replies

Hi Tim. No problem. There's a GM bulletin # 1455914, which lists W bodies and other medium duty GM trucks including the Isuzu models. Multiple concerns may arise including inoperative starter, due to wiring harness concerns in the area behind the left front wh... Login to read more.

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