Determining The Correct Replacement Suspension Components For A 2018 Keystone Fuzion Toy Hauler
Question:
I have a 2018 Keystone Fuzion Toyhauler, 40foot, tandeum 7,000 pound axle. It runs 12,800 dry, and 17,000 Gross. Leafs measure 24 7/8 eye to eye, and it is 61 - 1/4 from front leaf bracket to rear bracket, I think this is the term wheelbase. Have broken a rear leaf mount, rewelded. Have broken the equalizer, replaced. Have broken a leaf, replaced. Now most of the nylon bushings are done, and need to replace all. We use the toy hauler to race off-road dirt bikes, and frequently long gravel roads with washboard, and...the public roads around where we live are terrible with huge potholes. Looking for recommendations without too much expense. Leafs look fine, but should I upgrade the capacity? is there such a thing as a 7,500 pound? I plan on the Moryde thicker shackles and wet bolts...but then the CRE3000, or or All Flex 400, or Dexter, or Road Armor, which and why? Thank you
asked by: Brian
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Expert Reply:
Hey Brian,
Starting with the leaf springs, you can go up in capacity but you'd have to go with 8k leaf springs since there aren't 7,500lb options available. The Dexter # DX74XR would be the correct fit since you have a 24-7/8" eye-to-eye measurement.
For the equalizers I would definitely switch to something that has built in cushioning to help with ride quality and handle the extreme road shock you've been experiencing. I've seen bolts rub down through the equalizer from years of no maintenance but never an equalizer snapped off like you have. To find the correct replacement you'll need to measure the non-broken one like I have displayed in the diagram below.
Switching to wet bolts and upgraded shackles can definitely help but does require routine maintenance, otherwise the bushings will wear quickly and start allowing damage to the rest of the suspension. I've installed multiple Dexter and MORryde upgraded shackle kits and like both equally in terms of performance. To find the best bang for your buck I'd need to know the eyelet to eyelet measurement for your shackle straps. Once I have that measurement I can see which kit is going to be the most cost effective.
I really want to emphasize that routine maintenance is a requirement with wet bolts. Nylon bushings require no lube but wet bolts without lube will heat up and either weld themselves to the bushing or eat the bushing up.
Let me know what measurements you get and I'd be happy to find the rest of the components needed to upgrade your suspension.
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Products Referenced in This Question
7-Leaf Double-Eye Spring for 8,000-lb Trailer Axles - 24-7/8" Long
- Trailer Leaf Springs
- Double Eye Springs
- 8000 lbs
- 1-3/4 Inch Wide
- 7 Leaf
- 24-7/8 Inch Long
- Painted
- Dexter
more information >
Product Page this Question was Asked From
6-Leaf Double-Eye Spring for 7,000-lb Trailer Axles - 24-7/8" Long
- Trailer Leaf Springs
- Double Eye Springs
- 7000 lbs
- 1-3/4 Inch Wide
- 6 Leaf
- 24-7/8 Inch Long
- Painted
- etrailer
more information >
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Brian
6/4/2024
Hey Kevin, Thank you for the quality reply. Couple comments and a question. I went with Moryde HD shackles, and Road Armor cushioned equalizer. I stayed with the OEM leafs for the time being as they inspected ok. Even though Road Armor wasn't the least expensive, I was happy when receiving that the thickness and construction of it looked solid. I passed on the Moryde cross braces, but as we've broken the welds once already on these mounts I see the value of supporting them more. Frankly, it's all just pathetic how poorly trailer suspension components are made from the factory, and especially with these brackets, it is not expensive or time consuming to do something better. Question: I hear you on keeping the wet bolts lubricated. How frequently? (maybe in terms of miles, and considering we do run some pretty rough gravel and paved roads) Thanks again, Brian