i'm not sure what ur asking for but there is a notch about 6 inches behind the front wheel and 6 inches in. on the back wheel it's just about 6 inches in front and in...
and by notch i mean there is a thin line about a 1/4" thick running from the front wheel to back and there is two space on each side specifically so the jack doesn't move around
A 2 ton jack should support damn near the whole car. As long as it isn't lowered you should be able to slip it under the k-member cross brace, (brace that runs right beneath the oil pan) but if it's like mine it won't slide under there. In which case you go in right behind the front wheels and slip it under the frame rail. It's solid as a rock lifted there.