for sure, fine with it now. I even load trikes on it. In fact. trikes are what I mainly play with now. I have a 5' self cleaning dovetail, and 5' flip up self cleaning ramps, with ramp feet to prevent trailer tail dip.
the issue I have seen with aluminum is hardening and cracking.. and it's lower strencth compaired to steel of similar size. i know you can over build them and use lots of bracing to overcome that.. but i've seen a lone aluminum car loading ramp crack and fold while a guy was loading a car on a flatbed truck one time. ripped the nose of the car off damaged some body panels.. paint. and I'm sure the pan slammed the ground... these ramps were a type that folded near the middle, and had corrugated rolled edges to make a trough to guide the tires. fold happened where a side split occured in the edge.. that allowd the corrugated fold to flatten out and fold and bow. I do not know the weigt rating or any specifics.. I merely witnessed it.. from then on.. I've never touched an aluminum ramp. have made my own steel ones though with heavy angle, and heave flat.. using 3" angle for sides and 2 " for cross members, and 3"x3/8 flat sections as additional support bracing.
i made that ramp as a center for my trikes near a decade ago.. and I've had for sure 5000# on it by itself loading a heavy jd with huge cast axle weights, and the base tractor was over 4K by itself.. and it's never deflected or deformed a bit.. .. whereas aluminum can floex and if it does it can work harden.. then get brittle.
still.. if built correctly.. it should be ok.. just not for me..
soundguy