This is the second time I've read through this thread and I feel like I'm the house or mirrors! My experience has been far different. Our Lance came with a 4 step arrangement that hung below the door on broad 'C' bracket lag bolted to the wooden frame. The woe was it was made for a 2WD, 1/2 ton Dodge pickup. Much lower of bed. I used 1/4 " alum. flat stock and made 4 drop bars to breach the gap. This aforded no landing but worked well and folded underneath the camper when we had no rear rack in the receiver.
The 'C' bracket eventually broke and I was not real happy with how narrow and rickety the steps were so we went with Glow Steps a couple years ago. Again, the woe was they did not fit our application so I used the same 4 flat alum bars to lower the steps down as before except I had to cut the bars down from about 8" to 5".
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The sad truth is one size does not fit all. There are so many variations of spring height, tire size, air bag position, stable loads or not, that it's impossible to fit all TC's with a 4 or 5 step set.
jefe