Don't you have to remove the nothced part of the bumper? I saw a Libby with tow hooks (Renegade I guess) and the bumper was missing the notched area mine has.
On a related, but different, note, I will be installing lights under my bumper right where the tow hooks go (hoping to find an easy mount point for the light too) and was intending on Dremmeling out that notch. The bumper is only plastic, should cut easily.
Or maybe this notch in only on the '05 and'06 models...
'05 CRD Silver Sport
Sunroof, Tow, 700mi
EGR (2), TC & Pump, EGR FCV
Guages (5), PIAA duals, Hitch & side lights,
AeroTurbine, Fumoto, 3.7L Airbox, Revos, Steps,
Cargo Tray, Hitch Rack, Bike Rails, & Slush Mats