Thanks for getting me the slide out flange width you have of 151 inches on your 2017 Innsbruck. Based on that we know that the part # LCV000165061 that you referenced is the correct fit for it. view full answer...
I have a few options for you, but currently there are no electric A-Frame trailer jacks made that are low profile enough for you to open the liftgate of your 2015 GMC Yukon XL with the trailer still attached. The only way to open your liftgate with an electric trailer jack like the Stromberg Carlson Electric Trailer Jack - Drop Leg - A-Frame - 24" Lift - 3,500 lbs - Black # JET-3755 installed is to unhook the trailer, and lower it or move forward before opening the liftgate. It may be possible... view full answer...