Re: Spare tire carrier - Aluminess question
Mine is on the Aluminess, but the arm is the same. The restriction on mine is the tire not the gate, in that when open the spare bumps the bumper riser when it's open- which I guess would be analogous to the taillight. By shifting the tire itself you can get more swing (or by not having such gigantic tires).
For me it became a trade off between the passenger rear door opening past the tire and how much the gate will open, but there is more to stop it and I've got 34" tires. The newer Aluminess design also has a plate with lugs so you can swap bolt patterns, which should be easier to relocate to shift the tire allowing for more swing.
Just keep two or three points of the tire touching the arm, the lug arm is not designed to support the spare alone.