Though really it was more like 1 hour, 6 spark plugs and 4 hours for the other *&+#ing 2. (This is on the Suburban). And you know what, most of that 4 hours was on the spark plugs wires to get them off.
I wasn’t planning to replace the wires, but the only way I could get the #8 wire off was destroying it.
So much for an easy maintenance job for today. Time for a beer.