Hey Michael, thanks for reaching out!
It does sound like your 2011 Freedom Express should come with 3,500 lb axles so the etrailer Electric Trailer Brakes # AKEBRK-35 or the Hydraulic Trailer Brake Kit # AKFBBRK-35 will work in this case.
I do recommend double checking your axle capacity by looking at the tag in the middle of your axles prior to purchasing. If you have a different weight rating on your axles please let me know.
Attached are some installation videos for your reference. view full answer...