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Since you're here, add the front solution too.
INTERNATIONAL VERSION
Rear SumoSprings are a maintenance-free suspension enhancement built to create a better journey. Handmade from micro-cellular polyurethane, they are designed to reduce rear-end sag and increase load carrying ability while decreasing vibration, stabilizing sway, and softening harsh rebounds.
The SSR-313-47-INT has a 1,500 lb capacity when compressed at 50%. The Black SumoSprings shouldn’t be compressed past 65% of their original height in order to keep full memory rebound.
Please Note: SuperSprings International products are specifically designed for vehicles equipped with factory suspension. We cannot guarantee their compatibility with aftermarket products or parts. For questions about fitment on your specific vehicle, please contact us.
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Product Specifications
| Weight | 5 lbs |
|---|---|
| Dimensions | 13.5 × 8.25 × 4.25 in |
| Application(s) Summary | RAM ProMaster 1500 4 X 2 (2014-2023) ; RAM ProMaster 2500 4 X 2 (2014-2023) ; RAM ProMaster 3500 4 X 2 (2014-2023) |
| Spring Diameter | 4'' |
| Spring Height | 5'' |
| Capacity | 1500 (lb) Capacity at 50% Compression |
Contacted SumoSprings Tech department and stated what I had and got a reply in a couple of days. I have to say I was sceptical but I gave it a go. Purchased the units, very fast shipping to Australia. Arrived undamaged, great packaging. Opened the package, grabbed the trolley jack and stands tapped the old ones loose. Cleaned the mounting plate fitted straight up very easy install, 7 or 8 minutes a side any person can install these give it a go. Road tested last weekend what a noticeable difference, No sway , No bouncing when you go over uneven road surface, very stable steering now, we had 35kmph side winds and travelling at 110kmph a lot better to drive the "C" class Motorhome is. The units recommended do not compromise the ride quality or comfort, thank you. Sorry for all you imperial guys you will have to do the conversion to mph. Motorhome sits very level now loaded drives a lot better and less stressful to drives. A very noticeable thing is the stationary sway in the wind it is fixed, yes. My wife has driven the motorhome and noticed the difference straight away. All up money well spent for the outcome. I highly recommend anyone with a "C" class motor home ditch the standard units and get a pair of sumo springs to suit your vehicle you will not regret it. Thank you SumoSprings