Rear Sumo Spring Installation 2012 Adventurer 37F Help!

[SALLYCAPP]

I'm attempting to install my rear Sumos for my 2012 F-53 chassis under a Winnebago Adventurer 37F of the same year. Fronts Sumos were easy. I’ve got the passenger side rear wheels off, and I don't have enough clearance for the top bracket. The rear suspension is entirely hanging. Do I need to jack up the suspension on the opposite side to lower the suspension on the passenger side so the upper bracket can get to the correct position to drill the mounting holes? I haven't yet removed the driver’s side rear wheels, but I put a 3-ton floor jack under that side and lifted the suspension slightly to see if things were moving in the right direction on the passenger side. Things got a little better for locating the passenger side upper bracket in the desired position, but there's still a long way to go for that bracket to mount at the correct position on the frame. Do I also need to drop the anti-sway bar to help with this? I will remove the driver-side rears tomorrow to see if removing the tire weight helps the situation, but if jacking the opposite side of the suspension is the answer, what will happen when I get to the driver-side rear Sumo? Will the opposite Sumo on the passenger side fight against me? Any help would be appreciated. Thank you!

[creativepart]

Best of luck with your project. Not many of us undertake this kind of chassis work. I had my SumoSprings installed on my 37F at a local independent RV repair shop. It did cost $200 to do the rears, but well worth it for me.

[SALLYCAPP]

Originally Posted by creativepart

Best of luck with your project. Not many of us undertake this kind of chassis work. I had my SumoSprings installed on my 37F at a local independent RV repair shop. It did cost $200 to do the rears, but well worth it for me.

Progress!. I won the battle.

The upshot is that I got them installed today! I used a combination of approaches. I jacked up the opposing suspension a lot to lower the other side; I also used large C-clamps and a small bottle jack to compress the Sumo Spring on the problem side. That combo gave me enough clearance to get the spring under the iron propane line, and I could drill the first hole. Once that hole was drilled, I secured the upper bracket and then tightened the bottom bracket. I got the opposite hole lined up, drilled and secured, and removed the clamps and bottle jack. The other side was a snap, very straightforward and just like the many install videos I watched. I used the opportunity to install Centramatic wheel balancers and rotate the tires, too! I'm completely wiped out now. I'll be doing a follow-up post with pictures. I can't imagine how my version of this install could have been done without removing the dually wheels. Damn, those 22.5 wheels are heavy; I used a torque amplifier and a Go-Jack to help with getting them off and on. I look forward to road-testing the coach with the front and rear Sumos and the four Koni FSD shocks. The next project is the rear SuperSprings Trac-Bar, new front, and rear bushing kits, and the Safe-T-Plus steering stabilizer. I'm loving doing all the work myself! Damn, those 22.5 wheels are heavy!