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Roadmaster model number. Hey guys I’m trying to figure out the model number for my chassis on my 07 Dynasty. I’m trying to get shocks and they’re telling me there’s three or four model numbers but I’m not sure which one I have. I’ve looked at the label behind the driver seat and I’ve looked at the build sheet. I have the roadmaster manual but I don’t see your model number on it any help you guys could give me would be greatly appreciated.

 Thanks Don 

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I assume you have a tag axle as very few 2007 models were built without one.

You have the Roadmaster "S Series" chassis with 10 outboard mounted airbags and 10 shocks.  You should use the same shocks the Executive, Signature, and Holiday Rambler Navigator use.  

For what it's worth, several folks have softened the bridge abutment hit by installing four Koni shocks on the front.  Then install the Bilstein shocks on the rear.  

Attached is the Roadmaster Chassis listing.   

Roadmaster Chassis models.pdf

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Interesting that some with RR10S have put koni up front and bilstein in rear. I dont really understand. I want to replace the originals on myb02 exec. Can someone give me more clarity on the advantage of koni up front?

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I have the rr8r and put new koni's all the way about 1 1/2 years ago.  I saw where most prevosts were using them. I'm disappointed in the ride.  It may be worse that the old shocks. Just my input. 

Jim M

2009 Monaco Knight DFT

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We had all 10 shocks replaced last year with Bilsteins at Source Engineering.  Big improvement in ride and handling.  Several of our Rv friends have since had Source Engineering replace their shocks ,all with very pleased results.  Source has a special shock from Bilstein for installation on RVs.

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1 hour ago, WCourand said:

We had all 10 shocks replaced last year with Bilsteins at Source Engineering.  Big improvement in ride and handling.  Several of our Rv friends have since had Source Engineering replace their shocks ,all with very pleased results.  Source has a special shock from Bilstein for installation on RVs.

From what I understand the source shock is a re valved bilstein comfort drive. You pay a 50 dollar premium over a regular comfort drive bilstein...plus shipping. So thats 500 plus the shipping on 10 shocks...Im not so sure its worth it...some say yes some say no.

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Not 100% sure but I think the Bilstein shocks form Source have a larger diameter shat and are revolved for Source .Good luck on your selection.  Remember you will probably only replace these shocks once while you own the coach.

should say shaft and revolved.

Spell check keeps changing revalved

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My take on shock absorbers. (From a previous write up)

 

The OE Monroes were terrible going over rolling curb on a diagonal unless I slowly crept one wheel at a time.

 

At 14,000 miles, the Koni's resolved that issue and made road seams and the rebound so much better. With the Koni's, until the shock oil got heated up, road seams felt like I had 130 lbs in the tires. But in 3-5 miles all was good. No issues with rolling curbs.

 

At 65,000 miles, I replaced the Koni's with the Bilsteins, as I was getting excessive extension over bumps. The reason for Bilsteins was that Motorhome Magazine did a comparison test with 4 different brand shocks on the same coach and drove that qcoach on same test loop. They noted very little difference between the Koni and Bilsteins shocks. Wanting to save a few dollars, I went with the Comfort Bilsteins. Maybe the test driver wasn't driving his own coach as the test coach, maybe he couldnt feel the nuances between the Koni's and Bilsteins. Dunno.

 

At 69,000 miles, I'm back to fighting rolling curbs and to some degree extensions and rebounds. Therefore, back to Koni's. I only had time to put the fronts on before leaving for two weeks. And thought I might get away with leaving the rears alone. Nope. Go over a rolling curb, or similar, with the fronts, no problem. When the rears roll over it, I fear I might unload the cupboards. And as much weight that I have on rear axle, 21,650lbs, I thought no big deal with the Bilsteins. But I can tell big difference when going over bridge joints and rough roads with the Bilsteins. 

 

2000 miles later I installed the 4 rear Bilsteins with Koni's and the stars are now aligned. 

 

Just my experience. But, I’m sensitive to NVH.  Like Shepard steering boxes, X braces, and watts links, some people appreciate them while other have no issues with how their coach handles.

 

 

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34 minutes ago, Happycarz said:

My take on shock absorbers. (From a previous write up)

 

The OE Monroes were terrible going over rolling curb on a diagonal unless I slowly crept one wheel at a time.

 

At 14,000 miles, the Koni's resolved that issue and made road seams and the rebound so much better. With the Koni's, until the shock oil got heated up, road seams felt like I had 130 lbs in the tires. But in 3-5 miles all was good. No issues with rolling curbs.

 

At 65,000 miles, I replaced the Koni's with the Bilsteins, as I was getting excessive extension over bumps. The reason for Bilsteins was that Motorhome Magazine did a comparison test with 4 different brand shocks on the same coach and drove that qcoach on same test loop. They noted very little difference between the Koni and Bilsteins shocks. Wanting to save a few dollars, I went with the Comfort Bilsteins. Maybe the test driver wasn't driving his own coach as the test coach, maybe he couldnt feel the nuances between the Koni's and Bilsteins. Dunno.

 

At 69,000 miles, I'm back to fighting rolling curbs and to some degree extensions and rebounds. Therefore, back to Koni's. I only had time to put the fronts on before leaving for two weeks. And thought I might get away with leaving the rears alone. Nope. Go over a rolling curb, or similar, with the fronts, no problem. When the rears roll over it, I fear I might unload the cupboards. And as much weight that I have on rear axle, 21,650lbs, I thought no big deal with the Bilsteins. But I can tell big difference when going over bridge joints and rough roads with the Bilsteins. 

 

2000 miles later I installed the 4 rear Bilsteins with Koni's and the stars are now aligned. 

 

Just my experience. But, I’m sensitive to NVH.  Like Shepard steering boxes, X braces, and watts links, some people appreciate them while other have no issues with how their coach handles.

 

 

Solid review...and fwiw my Dads name was Harry Martin

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I’m not having very good luck with the shocks. I’ve he’d 2 Different sets of koni shocks and neither one fit. It’s about 70 miles each way too the shock place so tomorrow I’m taking one with me. 
Don

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On 5/4/2022 at 3:47 PM, DanMartin said:

From what I understand the source shock is a re valved bilstein comfort drive. You pay a 50 dollar premium over a regular comfort drive bilstein...plus shipping. So thats 500 plus the shipping on 10 shocks...Im not so sure its worth it...some say yes some say no.

That's $500 each, right?  That's $5000 for the lot.  Ouch! Glad mine are OK for now.

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I just installed 8 Koni's on my RR8S replacing the original Monroe's which had 74,000 miles on them.  The job was not that bad, about 30 minutes per shock.  Some tight spots though.  Needless to say, the ride is much better, but the Monroe's were shot and useless.   I am looking forward to my next long trip to really experience the difference. 

I bought my Koni's from UltraRVProducts.com.  They knew exactly what shocks I needed for the front and the rear, and had the best price for what I could find.  Shipping for all 8 shocks was only $12.

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