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I am a mechanic at a GM dealership, so I change lots of GM fuel pumps. I can't tell you absolutely about your particular job, but I can tell you that GM is changing the connectors on most of the fuel pump kits over to the new design. Most of the fuel pumps on GM vehicles since the late 90's had a connector that was square, 2 rows of 2 terminals. The new design they are changing to is flat, 4 in a row. Quite often, when we change pumps lately, we have to splice on the new plug. Sometimes you get a job that has already been changed before & has the new connector already, or you may get a new fuel pump that has been sitting around on a shelf for a long time & still has the old style, so you use the existing plug. You will have to look at it to know for sure. It isn't a big deal to change the plug if you have to. Just be sure to heat shrink the connectors to seal the splices after you crimp them. Try to stagger the splices on the various wires so the bulges of the splices are offset some, & good luck. Hope this helps, Ron
 
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