I had the ball joint separator tool you show. It didn't work. A hammer did.
Do it yourself, it's not that difficult. If you decide to do it, take the 10 minutes per side to remove the inner fenderwells first. Makes getting at the forward bolt a lot easier.
Also, remember that proper procedure typically calls for putting it back together with the bolts almost tight, putting the wheels on, lowering the car so there's weight on it, then tightening the bolts with it on the ground (which is another reason to remove the inner fenderwells). Then, jack it back up, pull the wheels again, and replace the inner fenderwell covers.
'09 Pontiac G8 GXP, A6, Sunroof, MGM, #1664 of 1829
LS3 with window in block. New LS3 on the engine stand, being built.
BMR Rear LCA's, stabilizer bars, end links, front LCA bushings, rear toe links and trailing arms, Pedders Street II kit, including subframe and diff bushings.
Hawk Ceramic pads, Brake Performance slotted and dimpled rotors, Russell stainless lines, Super Blue fluid.
Best 1/4 time - 12.52 @ 114.47, 1.94 60ft.