I was asking about this a few months ago around my area. I was told it's not the best idea, because both the hitch and the truck bed (for goosenecks) are raised and will slant the trailer. BO told me that I could possibly do a 4" lift but anything more would be a bad idea. Posted via Mobile Device
My friends moms BF at the time had a super lifted ford and they just got a dropped hitch? I believe its called that but theres was a bumper pull they had no trouble with tilting and the truck pulled it just fine... however with a gooseneck you may have some trouble. My trainers excursion is lifted as well and also has I believe a dropped hitch (if im calling it correctly hha) and pulls her bumper pull just fine. I would think if you aren't lifting it overly high you shouldn't have an issue but I'm no expert just see many lifted trucks around here with trailers haha.
I have a lifted F250 and haul a 2 horse BP. Just buy a dropped hitch and you'll be fine. With a dropped hitch you'll be at the same level as a regular truck. I can upload pics of my rig if needed once I get home in several hours. Posted via Mobile Device
If you are pulling a gooseneck, don't get crazy or you will run into a problem with trailer angle while pulling (get too tall, and you won't be able to hitch at all)
You got a little more wiggle room if you bumper pull, however I *think* you have to downrate your towing cap if you use a large drop-down hitch.
This is just a personal piece of advice: be sure to use a quality lift kit built specific to your truck. I've seen more then one truck's lift kit fail while towing, and it was not a pretty sight.