FWS Major Failure (see photos) *UPDATE*

Right side

Left side

See my reply on the other forum. That was real similar to what 3T's did for my friend.

Cheap hardware.

If I understand the proposed fix correctly, I am not sure I would trust welding the existing bolt. There is a reason those bolts sheared and welding them won't increase their shear strength. I would push for another fix. Larger hardware, larger brackets etc. But welding the existing broken bolts seems risky. In the first pic, it looks as if there is a hole for another bolt. Was this designed for 2 and only one was installed? Additional bolts of a harder grade may resolve the issue.

I think the bolt should be replaced, rather than welded. Perhaps they used a lower grade bolt instead of a high strength bolt. IN any case, the bolt was installed when the unit was built and there must be a way to replace the bolt now.
I remember watching one show on cable where they completely removed a slide on an RV, repaired it, and reinstalled the slide in about 5 hours.
As far as your extended warranty, who knows? Some specifically exclude problems with the slide. You need to read the fine print and contact them before any work is done.

Obviously the threaded fastener was over stressed. Price to pay for the 'full wall' and the giant hole it creates in the side.
Larger diameter fastener with a support sleeve is the only proper repair.
No way is welding appropriate in that area.

Is the broken small piece welded to top bracket?
That looks like welding stress crack, what is typical with welding heat-treated steel without observing proper procedure.
This way or the other, looks to me impossible to do any solid repair without taking it out.

Something about the set up just doesn't feel correct. Bolts do a really good job holding two surfaces against each other but exposing a bolt body to lateral shear forces and not expecting failure sometime later is a bit much. And the idea of using a force multiplier, such as a jack, to push everything back together then welding is also asking for failure by forcing a misalignment if the resting state is as shown in the images.

Since the two pieces appear to have an air gap it needs to be filled with something that can take the lateral strain rather than the fasteners. Even something a low tech a square tubing with a bolt thru it. The friction of four surfaces held together by a fastener will eliminate most if not all the shear force on the fastener.

Maybe I was not clear in my OP due to my frustration. According to Winnebago Tech Support, the way to fix it would be to remove the existing bolt which has a double nut on the bottom. The underside of the frame then needs to be grinded flush with the bracket. At this time, a grade 8 bolt needs to be inserted into the bracket on the ram and the head of the bolt welded to the underside of the hole at the sheer point. The nuts can then be put back on the bottom to make required adjustments. The existing bolt had been welded to the frame at the factory eliminating the idea of removing the broken bolt entirely. Winnebago states that even if brought to the factory in Forest City, they would use this method to repair it.
The challenge is getting a good weld joint in a very tight space, especially on the back side of the bolt.
I will be taking it back to the selling dealership tomorrow to have it repaired.I have owned this unit for 10 days and believe it should be covered under the warranty mandated by state law.
I did check with my Extended Warranty company, but they stated they do not cover nuts and bolts.
I will keep you posted!