ugh i had a bad day.
went to local automotive parts store and saw this floor jack + jack stands combo for NZ$59, but they sold out. i went back home and find the locations of other stores but didn't take the highway, then i was 2 minutes too late for the last combo at another store. i crossed the bridge visited another store, again sold out. got 1 at the next store - i almost wanted to quit.
but this cheap combo is pretty bad. the floor jack can only raise 33 cm at max, which is hardly enough for the lowest position on the jack stands.
anyway, the car is raised up a little bit, just enough for me to get under it. then these 2 screws are damn hard to remove. i sprayed some wd-40 and waited, but no effect. i used hammer on the socket, no use. i put some rugs on the handle of socket and pulled really hard under the car, the screws almost got rounded.
ugh i had to quit. and then this floor jack is so bad, i need to use a flat head screw driver to turn the release valve - the manual says "very slowly" - anyway it's damn dangerous to operate.
damn it i'll probably have to find a shop to get rid of the screws.
btw, with a rough measure, the tip would extend almost 5 cm out of the rear bumper. havn't decided whether to cut it off a bit.