[sparrbq]

I had a 1997 k-1500 4x4 was cutting out and eventualy died on a bumpy paved road in nowheresville Pennsylvania.
Would just crank and I could smell gas.
My Dad was with me and looked under the hood and noticed a coil wire (I guess) had come lose.
Only way He noticed was He saw it spark as I turned the engine over. No way I would have found it myself on the side of the road.
Anyway, maybe check the wires and see if something is lose from all the bumps?
You may have pulled it lose doing an oil change or checking the Tranny. dip stick.