Roadmaster Anti-Sway Bar for 2018 Winnebago Aspect Class C Motorhome on Ford E450 Cutaway Chassis

Question

Question:

I have a 2018 Winnebago Aspect 27K Class C RV based on a 2017 manufactured Ford E-450 Super Duty chassis. I already have purchased from you and installed SumoSprings Maxim Helper Springs - Rear - Heavy Duty # SSR-106054-1 at the rear, and now am looking at fitting a Roadmaster Anti-Sway Bar, but am a bit confused on the difference between the #RM 1139-147 and the #1139-947 and therefore in making the correct choice. Incidentally, my assumption is “Auto Chains” refers to automatic tensioning snow chains, and that the end links on the #1139-197 assembly must be designed differently so as to preclude any interference with a snow chain installed on to an inner dual rear wheel. Admittedly I suspect I would only very seldom find myself in a position where I would have to fit snow chains. However, on the other hand, IF that happened, I would only plan on putting them on the outer rear wheel each side. That being the case, I cannot figure out why any type of different configuration of the anti-sway bar end link element would be negatively affected by the fitting an automatic snow chain on the outer dual wheel. I’m sure I must be missing something simple but fundamental here, but do not want to risk making the wrong purchasing choice and regret it in a year or two if I made the wrong one. Thanks.

asked by: Michael P

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Expert Reply:

By Auto-Chains, Roadmaster is referring to air-actuated tire chains that deploy from the bottom of the vehicle just inboard and in front of the rear wheels. The chain assembly consists of a central hub with multiple lengths of chain radiating out from the central hub. The chains deploy so they lay on the ground right in front of the tire, and will spin as they pass under the tire. It's pretty ingenious, actually. You can Google 'Automatic Tire Chains' and you'll see what I'm speaking of.

Auto chains are more typically found on commercial vehicles, and you'd probably know without a doubt whether your motorhome was equipped with them.

For your Class C Winnebago Aspect on a E450 chassis, you'd want to use the # RM-1139-147 Anti-Sway bar for vehicles without auto chains, as it's very unlikely you have them. I've linked to an install video that you'll find helpful.

expert reply by: Mike L

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Answer 1

When installing the Roadmaster Rear Anti-Sway Bar Item #RM-1139-147 you can reuse the bolt holes in your frame for your links as long as they allow the anti-sway bar to sit level. If they do not you will need to drill new holes. I've attached an…

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Answer 2

In regards to the Roadmaster Exact Center Steering Stabilizer part #RM47MR, the stabilizer installs on the front of the steering arm pointed down. I have attached a photo of this below. If this wasn't what you were looking for, please just let me…

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Answer 3

The Roadmaster Exact Center Steering Stabilizer w/ Custom Brackets #RM47MR typically comes centered and you would only need to make adjustments after installation and testing to see if it continues to pull. If you adjusted it all the way out to where…

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Answer 4

Roadmasters priority when it comes to their sway bars is top notch quality and the easiest install for the customer. This typically cuts the install time down enough that you end up saving money if you pay to have the bars installed or decide to do…

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Answer 5

There isn't a leaf spring helper system that is able to be used on your 2022 Ford E-450 combined with the SumoSprings Maxim Custom Helper Springs #SSR-106-47-1. Reason why is these mount on top of the leaf spring pack so a leaf spring helper like…

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Answer 6

I found the online version of the install instructions for the Exact Center stabilizers like the #RM47MR. What's fun is that just when you think you have found the correct step to address your problem it tells you to continue to the next step.…

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Answer 7

It looks like a website issue and something has changed with our fitguide. I confirmed that the Roadmaster Front Anti-Sway Bar item #RM-1139-176 does fit your 2017 Coachmen Leprechaun on a Ford E-450 SD. I have linked the installation video you…

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Answer 8

The Roadmaster Rear Sway Bar part #RM-1139-147 that fits your 2017 Ford E-450 Class A motorhome does require drilling to install. New holes must be drilled in the frame to mount the Roadmaster end links. If you check out the attached install…

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