We have a 1983 Starcraft Galaxy 24 that we bought used. The lifters are starting to punch through the wood floor of the popup. They haven't punched through completely, but there is about a 1/4" to 1/2" bulge for all 4 lifters underneath. I don't know how long it has been in this situation. The result of this is that the roof doesn't go up high enough to make the door fit properly. I went and replaced all of the rear lifter cables, including the inner lift cable (3-section lifter) and have adjusted the turnbuckles so that it now achieves the right height, but the turnbuckles in the rear are at their maximum adjustment, so if the cable stretches much, I'll be back to where I was: snapping cables trying to get the roof up to the proper height. The front lifters appear to have plenty of adjustment left, though I did order new cables just in case. The other problem is that in the rear, whatever bracket holds the upper portion of the lifter to the roof has worn a groove in it, so that is also affecting the ability of the roof to be raised to the proper height. Are there any easy fixes for this? Custom supports that I install to take the load off of the lifters? Some metal plates/brackets for the bottom of the lifters to prevent it from punching completely through? Or am I just dealing with the harsh reality of having a 25 year old popup that appears to have been well loved and used and may just be ready for retirement? We only paid $1950 for it and have gotten good use out of it, so it's not like it has been a waste. And a related question: Is the door seated properly (or the roof at the right height) when the upper portion of the door frame meets the rubber seal that goes around the bottom edge of the roof? The owner's manual (such as I have or have found) is not clear on this.