It's temp swings that kill PMD,, and if it's on the pump,, it's prop on its way out or gone. You will want to relocate it, if it's on the pump, So do your self a favor and get a kit from the poster above you from his link. PMD, resistor, heatsink, extension cable, and mount that badboy in the front bumper area, and be done with it. Don't forget to do that OPS relay mod, while you got your tools out!
You want this rig reliable don't you? Now get busy!