7K vs 8K Roadmaster Comfort Ride Springs

[Carle3]

I am looking for results from those who have upgraded to the Comfort Ride Slipper Springs w/shocks. I am debating on either the 7k or 8k versions. I have 7k axles and my last CAT scale weight on those axles was 13,980. I am considering the 8k springs but Roadmaster warns that too heavy of a spring rating can degrade the ride quality. I am looking for those with similar setups and weights who have made this upgrade what their real world experience has been.

 

[Mikendebbie]

I had Performance Trailer Braking (PTB ) come to the house and install Roadmaster Comfort Ride system a couple of weeks ago. My OEM springs have been “flat” for a while and I needed to do something. I thought about doing new springs and wet bolts myself using YouTube videos - but my enthusiasm wained. I also thought about going to the nearest “truck frame and chassis” shop - which is 90 minutes north in Waco and get them to do the work. When I found out PTB will come to YOU for the install - I pushed the EASY button and emailed Ashley O'Niell. Last time I weighed my rig I was not over-weight, so my 7k axles were fine. I have not yet pulled the rig with the new suspension, but I am looking forward to testing it out this summer. I also had Ashley install two Morryde XFactor braces.

When she removed my OEM springs and bolts - there was one wet bolt and bushing that was blown and the band on that spring was bent out away from the springs…so I was on borrowed time waiting on a bad time to happen.

 

[Carle3]

I watched some Youtube on this and it seems that there are a lot of those wet bolt bushing that are blown apart. The scary part is from the outside you wouldn’t know.

 

[20TwoAdv]

I am looking for results from those who have upgraded to the Comfort Ride Slipper Springs w/shocks. I am debating on either the 7k or 8k versions. I have 7k axles and my last CAT scale weight on those axles was 13,980. I am considering the 8k springs but Roadmaster warns that too heavy of a spring rating can degrade the ride quality. I am looking for those with similar setups and weights who have made this upgrade what their real world experience has been.

We upgraded our 3531RE to the 8k Roadmaster Comfort Ride about a year ago. It has 7K axles and actual loaded scale weight as at 14,630. Even if yours weighed in at 13k, the axles would have be over 90 % rated capacity. Our ride is much better than before judging by the inside of the trailer after pull. On ours we also upgraded to H rated tires because of the %of rated capacity. Totally up to you but highly recommend going with the 8k springs. At 13980 and 7k springs you’re at 99%, with 8k, you’ll only be at 87% rated capacity. Good luck!

 

[RMcNeal]

I think the math is off a bit. You're not accounting for the weight on the truck. At 13,980 lbs., that full weight is not on the axles, only about 75-80% of it.

 

[Mikendebbie]

I found this CAT scale ticket for my rig + truck dated July 2019, and you can see the weight on my axles is 12,260 lbs, so the OEM 7000 lbs axles are good to go. My tongue weight is included in the DRIVE AXLE weight…unfortunately I have never taken the time to disconnect and properly weigh the rig by itself.

 

[twindman]

Mikendebbie, You don't have to weigh the rig unhitched. Weigh everything and then weight the truck unhitched. Difference is the trailer weight. If I recall correctly some scales give you 2 weighs. So if the scale is near your campground, you can go back later and get the truck.

 

[Mikendebbie]

I have weighed the truck separately in the past, but i could not fine the ticket on my phone.

 

[20TwoAdv]

I think the math is off a bit. You're not accounting for the weight on the truck. At 13,980 lbs., that full weight is not on the axles, only about 75-80% of it.

You’re right. I have to take off 2900 +/- for the hitch wt.