I had similar results with my Small Block 8's on a previous bike... Not so good for riding in the area I am.
Every panel of your 4Runner should have a sticker with the vin number on it. About 1/2" x 3 inches I'd say? Easiest one to find would be when you open the back doors, should be one on the wheel well area. The tailgate one is somewhere alone the edge of the tailgate... I forget where exactly. It's one way to see if a panel has been replaced due to rust, collision, whatever.
In the Army I am a 12B/12T. Combat Engineer/Technical Engineer. Moreso the Combat part... Stationed in Ft. Lewis, WA. Currently over in Afghanistan.
That's really awesome man, thank you for your service, stay safe!