Welcome to Sunline Owners Club and congrats on your new coach!
H'mm now to your problem. Bummer, but all fixable. I looked up your floor plan. Nice. I never realized Sunline had a dual slide camper in a potential 7,000# GVWR camper. They where for sure ahead of their time.
I have been deep into the slide mechanism on my style which is the Lippert slide system and I know it well.
Yours being a 99, Sunline used the Barker slide on the bigger units in 2000 so you may have the Barker unit as well.
See this post with pics of the Barker system. Does your look like this style?
If you can post some pics we can see what you are up against however I will make some assumptions, maybe bad to do but you can see if this fits with you have in front of you.
Inside the camper is a flange that goes all the way around the slide. This flange when the slide is extended out stops and seals up against the side wall of the camper. If you want to remove the slide, that entire flange must come off.
I do not know the exact type of rubber slide seal you have however if they look like mine they fit onto an aluminum frame work in the side of the camper. There may be 4 screws that hold that rubber gasket on and once they are out the rubber will pull out of the frame work. By the sounds of your post you seem to be past the rubber seal. If not let us know and I'll post pics of how mine is at least attached.
On mine, once the inside flange is removed and the rubber seal then the slide will go right out the hole in the side of the camper.
A caution, the slide system mechanism may use the inside of the camper as the mechanical stop. If the inside flange is off and you jog out the slide on the slide mechanism be care full when you come to end of where the wall is. The mechanism may have more stroke and keep on going and then the slide may drop when the end of the floor clears the camper. Jogging up to that point I do not see a big issue just go slow. Once you are close the the normal wall area, you will have to stop and then deal with how to remove the slide out of the side the camper.
The slide system arms that have flanges on then bolt to the floor of the slide by a riser plate. Those nuts are on carriage bolts. The carriage bolt head is up in the wall. Odds are high they are rusted heavy and the carriage bolt may spin in the wood trying to get them out. You may have more luck unbolting the steel riser plate from the end of the arms and leave the riser plate on the slide.
The good news is yours is the smaller slide. Less to handle. If you have 2 guys and saw horses you may even be able to lift it up and take it right out. Mine is the bigger super slide. I may need 4 to 5 guys just due to the size or better a fork lift.
Hope this helps even if it does not 100% fit yours. Curious on how your slide is made. Once you get it out if you can posts some pics would be great. We all learn from these repair projects.
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
Google Custom Search For Sunline Owners Club