V-8 is NGK PZTR-5A15 Plug. The V-6 is a AC delco41-932 plug.
.060 inch
According to Champion spark plug applications chart, the correct gap for 1995 Chevy Tahoe 350 engine is .035
.040 for best results
0.040 inch
firing order is: 1,8,4,3,6,5,7,2
65
If you have spark to the spark plug, the fuel injector may be at fault.
Listed under your hood on a sticker.
gap .060 good luck
There is no drain plug. Pan must be removed.
Give the spark plug boot a twist to free it from the spark plug then pull it off of the spark plug by the boot.
Mine is out of a 02 Tahoe it is 0.060 in