Here are a couple of excerpts from a post of mine in Sept 2015, thinking I was piggybacking on whazoo's and oldetymeflyr's advice....I had to adjust the roof lift motor torque,so I cutout notches in each end of 2x4s ~28" long to fit between the horizontal torsion bars, with the notches allowing the piping to "seat" in the 2x4.. Now I think I understand that whazoo didn't actually put the supports in between the bars, but on the roof itself....maybe I should have paid more attention the first time?? would have saved myself trouble (I actually did this job a second time when I ended up replacing the motor, and did use two supports on each side between the bars without problems.)
"I put oldetymeflyr's roof supports, one one each side, just behind the kitchen sink (and same place on passenger side). If I have to do it again, I'll put two on each side, at each end of the piping. Doing it the way I did it, in the middle, allowed the pipe to spread, which put the weight on a little fiberglass piece on the cabinet....there is no other support from end to end. It held for a while.....then I heard it start cracking, but I couldn't react fast enough to what was going on. It broke a small piece on the end of the cabinet (which is not visible) and the roof fell about 2 inches....which tightened the gap where I had taken the motor out, so there was no way to get it back in (it also tightened various parts of my anatomy when it happened). I put a jack under the piping on the kitchen counter, but immediately realized there is no support under the counter, so I had to pull out the pots and pans and build a support. I realize now part of the difficulty in sliding the jack motor out was that it was carrying the weight, because when I jacked the roof back up and ensured no contact, the motor slid in easily....
I did run into difficulty rebolting the white piping to the bronze blocks....it was a job to get the bolt holes to line up. I was able to lift and hold the roof by hand on the passenger side, but needed my jack again on the driver's side."
Hope this helps.