Does not have one. If you want to drain gear oil you remove the diff cover.
Look at the bottom or rear lower section of radiator
It is that drain plug looking thing at the bottom left of the radiator.
Should be a plug at the bottom or rear of radiator or remove the lower hose
To drain the oil on a 1991 Chevy S10 Blazer, located the oil pan drain plug. Use a wrench to remove the plug and the oil will flow into the receptacle you have provided.
Rear of the engine block, near the oil pan.
Replace the drain plug gasket and don't over tighten it.
Standard or automatic?
the size of drain plug and the oil level check plug is 17 mm on s-10 1999 manual transmission
yes there the same
The wrench size should be 15mm.
The drain plug would be at the lowest point under the engine. It will take a 15mm wrench to remove it counterclockwise.
Either on the bottom or rear of radiator