If it is the original drain plug it should take a 15mm.
19 MM
For a 1996 GMC Sonoma, the oil drain plug typically requires a 15mm or 5/8-inch wrench. It's best to check your vehicle's manual or inspect the drain plug directly, as variations can occur based on the engine type or any modifications. Make sure to have the correct size to avoid stripping the plug.
spark plug gap for 1994 gmc jimmy
It would be found at the lowest point of the oil pan. It should take a 15mm wrench to remove it.
It should take a 15mm box wrench to do the job.
.60
.096 is the spark plug gap
per vehicle specs on a 1998 gmc jimmy 4x4, the correct size tires are 235/70/15
0.060
The differential fluid on a GMC Jimmy is changed by removing the drain plug, draining the fluid, and re-installing the drain plug. The filler plug can then be taken out, fluid added until it reaches the bottom of the filler hole, and the plug re-installed.
stubby 18mm wrench and a hammer
Stock size 235/75 R15