If you continue to post on T-B-N you will get more replies if you display the horsepower and weight of your tractor; 23-hp / 1480 pounds. Then everyone with tractors in your category can reply. Model numbers are not very informative.
If you just need to
groom loose dirt, without hillocks, grass and vegetation, a 60" Landscape Rake will work. A Landscape Rake moves dirt and SMOOTHS but its flexible tines do not have the ability to CUT. As Landscape Rakes are usually pulled on an angle, infrequently "straight", you want a rake 12" wider than your tire width, so rake will cover enough work area when angled. ~6" wider per side.
If you need to level dirt, i.e.: cut mounds to fill in low areas, you need a 48" Box Blade, which has a CUTTING edge. As you may or may not know, the hydraulic system lifts the tractor's 3-Pt. Hitch, but gravity returns every ground engaging implement to work, there is no hydraulic down pressure, therefore: A box blade needs to be as heavy as your tractor can manage in order to cut. If you buy too light a box blade it will bounce along the surface, not cut.
Look for a 48" box blade 350-400 pounds. Box Blades are near indestructible....one of the implements OK to buy used, if you can find one heavy enough. So often only light blades are available used, sold by owners disgusted that they do not cut because they are too light.
Generally speaking a Box Blade will be twice the weight of equivalent Landscape Rake and proportionally more expensive.
You must have four wheel drive to successfully pull a dirt-filled Box Blade.
Here is a LINK to 436 threads on T-B-N having the word LANDSCAPE in the title:
http://www.tractorbynet.com/forums/search.php?searchid=385716
If your grooming needs are minimal you might consider a CHAIN/DRAG HARROW as an alternative:
http://www.tractorsupply.com/en/store/loyal-drag-harrow-4-ft-x-4-ft
