Consult the underhood sticker. By the way, the last Astro was in the 2005 model year.
.60
.60
.045
.065
0.06
.45
Consult the underhood sticker.
The spark plug gap for a GM vortec V6 is .060
.060 in inches.
I was quoted $120 without new spark plug wires.
.042 to .043 should be good for gap!
0.040