Steering Stabilizer For 2018 Thor Quantum RC25 Motorhome

Question

Question:

What is the correct part number that that would fit my new 2018 Quantum RC25 E450 Class C motor home? I assume it would help with the feeling of wandering when driving in wind, trucks passing and just general driving conditions? Thanks OR: do you recommend something different. I cant install air bags on the RC25 due to Thors changes of the chassis once received from Ford.

asked by: Jim M

1

Helpful Expert Reply:

The correct Roadmaster Steering Stabilizer for a 2018 Thor Quantum RC25 Motorhome is part # RM47MR.

This steering stabilizer would help dramatically with reducing the wandering feeling you have during crosswinds. If you are also having issues with side to side rocking when larger truck pass by then you will want to upgrade the rear anti-sway bar as well with the Roadmaster Rear Anti-Sway Bar part # RM-1139-147.

In general, these are the two most commonly upgraded components on the factory suspension of a motorhome.

expert reply by: Conner L

1

Answer 1

For a Thor Class A motorhome built on a Ford F-53 chassis with V10 engine the steering stabilizer I recommend is the #RM-RBK22-RSSA. No drilling is required to install this stabilizer, the kit includes all required hardware, you will need a torque…

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Answer 2

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 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

Hey David, actually what is going to make the biggest improvement in handling and stability for your 2011 Itasca is an upgraded rear sway bar with the part #RM-1139-175. I know that's not what you asked about but for motorhomes where most of the…

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Answer 5

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 6

The Hellwig Adjustable Big Wig Rear Anti-Sway Bar #HE94FR is only going to leave a few inches between it and the spare tire, as you can see in the attached picture. Depending on how far forward you have the tire it could potentially interfere with…

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Answer 7

The torque spec for the rear U bolts on your 2019 F53 motorhome are dependent on the size. If you have 3/4 x 16 u bolts (and used a 1 1/8" socket to remove the nuts) then they torque to 250 lb-ft. If the u bolts are 7/8 x 14 (and you used a 1…

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Answer 8

Lance does have a proprietary plug, but many customers see a standard 6-way or 7-way round and notice it doesn't fit their factory 7-way as well. I've attached an article to help if you have one of the 7-way or 6-way round connectors which we…

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Answer 9

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 10

The Roadmaster #RM-1139-140 and #RM-1139-148 are both replacement anti-sway bars for a Ford F550 or F53 Class A motorhome chassis. Both bars are 1-3/4 inches in diameter. The #RM-1139-140 fits models with a GVWR of 22K-24K, and the #RM-1139-148 fits…

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Answer 11

There is a suspension enhancement option for your 2021 Entegra Vision XL built on a Ford F-53 chassis, but I verified with the manufacturer that the steering stabilizer only fits if you have at least a 24,000 lb GVWR. You're not out of luck…

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Answer 12

The Roadmaster Rear Anti-Sway Bar for Motorhomes #RM-1139-143 can use your factory u-bolts if they are long enough. If they are not, then Roadmaster recommends using the 7/8 inch diameter u-bolts that are longer (most likely the larger diameter due…

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