Only the filler plug. You have to remove the cover to drain the oil.
There is an upper filler plug and a bottom drain plug in each differential. R&I (Removal and Installation) the filler plug first then the drain plug until the differential completely empties out. Then reinstall the bottom drain plug and add 90W gear oil which usually comes in a squirt bottle so you can add it into the upper filler plug. You should fill it up until the level is right at the bottom of the threads of the filler hole.
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.
on a 2002 there is a drain plug on bottom and the filler plug is on the side it takes a little less than 3 qrts. fill till fluid runs out of filler hole
The gap on spark plugs is .042.
Thereis a tag on the filler plug for the differential. On my 2001 300M the tag ready 80 to90 wt hypoid gear oil only.
what is the spark plug gap for 2005 gmc envoy 4.2l v6
Plug on the side of the differential. Location varies depending on the differential but should be easy to spot. If changing oil, you need to remove rear cover to drain (no drain plug), clean, seal and refill until oil begins to come out of the filler hole.
there isn't a radiator drain plug. you have to remove the lower radiator hose from the radiator to do a drain and fill.
Most fill plugs can be removed with a 3/8 " ratchet and a short extension. The square end of the extension goes right in the fill plug.
The obdII connection is on the right side of the steering column mounted on the edge of the the lower dash panel.
It has no differential plug.