SumoSprings vs. Timbren for Full-Timing with a Travel Trailer

Updated 08/18/2026 | Published 08/09/2026

Products Featured in This Question

SumoSprings Solo Custom Helper Springs - Rear Axle

(2534)

$382.99

SumoSprings Solo Custom Helper Springs - Rear Axle

(2533)

$372.99

Question:

Im looking for your recommendation on the best SumoSprings for my towing setup. I have a 2024 Ram 2500 4x4 with a front leveling kit and the factory rear suspension. I tow a Jayco Eagle HT 312BHOK travel trailer using a ProPride 3P weight distribution hitch. My family and I will be traveling full-time, so the truck will be used both for towing between campgrounds and as our daily driver while the trailer is parked. My goals are to reduce rear squat while towing, improve stability, and still maintain a comfortable unloaded ride. Here are my current measurements: Truck only unloaded: Front: 43.5 Rear: 43.5 Truck hitched to the trailer before applying weight distribution: Front: 44.5 Rear: 39.5 Truck with the ProPride weight distribution properly adjusted: Front: 44.0 Rear: 40.0 Trailer frame with the ProPride adjusted: Front: 24.5 Rear: 24.25 essentially level Ive been looking at the SSR-312-47 1,500 lb and SSR-312-54 2,800 lb, but Im unsure which would be the better choice. My trailer has a relatively heavy loaded tongue weight, and I want to ensure I the best product for my application while maintaining good ride quality when the truck is unloaded. Based on my setup and measurements, which SumoSpring would you recommend? If you believe another SuperSprings product would be a better fit, Id appreciate your recommendation and the reasoning behind it. Thank you for your time and assistance. Best regards,

asked by: Alessandro A

Expert Reply:

Hey Alessandro!

Based on your setup and measurements, I recommend the SumoSprings Solo Custom Helper Springs # SSR-312-54 for your 2024 Ram 2500 4x4 and Jayco Eagle HT 312BHOK travel trailer setup over the SumoSprings Solo Custom Helper Springs # SSR-312-47.

With the truck dropping about 3-1/2" at the rear with weight distribution and the heavier tongue weight of the travel trailer, the additional support of the # SSR-312-54 is going to give you the best setup, especially with you being a full-timer.

I would stay with the SumoSprings rather than moving to a stiffer Timbren-style setup since maintaining a comfortable unloaded ride is important for you. The # SSR-312-47 would give you a little softer support, but considering the amount of squat you're seeing and your full-time towing use, the # SSR-312-54 is the better fit.

Where are you planning on traveling with the Eagle? How long have you been full-timing?

expert reply by: Jerry B

8/15/2026

Mine are not for rear sag but for carrying a slide in camper! The SSR 312-54 work good and have really cut down the sway. Over 6000 miles of Rocky Mountain roads, both hard surfaces and gravel roads. Many more in store!

Jerry B.

8/17/2026

@Cj That's awesome to hear! I'm glad they're holding steady for you. What kind of vehicle did you install it on?

Charlie

8/15/2026

Which set you buy really depends upon the pin weight of your camper , I had a grand design with about 1330 lb pin weight so I used the 1500 rated springs , when I bought a new camper with 2200 pin weight I bought the higher rated set , Both worked well in reducing squat and side to side body roll . Honestly unless you load your truck you never feel any difference around town . This year 4 running Sumo springs and have no regrets .

Jerry B.

8/17/2026

@Charlie Glad to hear it! Are they installed on your daily driver or were you just testing them out around town?

Jimmyp

8/15/2026

I have the same truck setup as you and a 32' 7k 5th wheel. I am using the SUMO SPRINGS SSR-312-47 as per Jerrys recomendation as these are perfect. They work exactly as described. You will not regret. Thanks= Jimmy

Jerry B.

8/17/2026

@Jimmyp Thanks for your confirmation! How long have you had your SumoSprings installed? How far have you traveled with them?

Jimmy

8/17/2026

@JerryB I have had them on for 3 years. They absorb the weight so well. Nice product!

Jerry B.

8/17/2026

@Jimmy That's awesome!

Chris P.

8/15/2026

I bought a set of the -54 Sumo Springs for a 2025 R2500 after a lot of research and deliberation over other options. I have a 5th wheel with a pin weight of around 2k pounds and downsized from a 2018 R3500 to the R2500. The addition of the Sumo Springs provides a better ride height on the 2500 than the 3500 ever had and when empty, provide the softer ride of the 2500. The stability when towing is great and the ride is firmer but not harsh or rough. When not towing, the springs do not engage except over large bumps and even then, the ride just feels more stable. Installation was easy and for you numbers guys, without the Sumo Springs, the ride height dropped around 7.5 inches in the rear when loaded and now only drops around 3.5 inches when loaded. My truck has been leveled 2.5 inches and when the trailer is hooked up, the truck remains nearly level with only a minor rake to the rear. I’d recommend the Sumo Springs to anyone looking for a simple, low cost suspension enhancement for towing or hauling additional weight.

Jerry B.

8/17/2026

@ChrisP Thanks for your feedback and review! I'm glad these SumoSprings are taking care of you and your truck. Is your 2500 a work truck, daily driver, or strictly reserved for trips?

Chris P.

8/17/2026

I use my Ram Rebel 2500 mostly for towing our 31ft 5th wheel, 24ft enclosed car trailer and 16ft flat deck auto trailer. I was concerned about the towing characteristics going from a Ram 3500 to the 2500 however with the addition of the Sumo Springs, I feel the 2500 has a better ride and handles the weight as well as the 3500 @JerryB

Jerry B.

8/17/2026

@ChrisP That's a pretty common sentiment. I guess it's just the weight of the truck that makes it feel better when towing. Fords are great regardless, but the bigger they are, the rougher the ride, I guess. Any big trips with the trailers coming up?