what is the height of sumo spring (SSF-280-47) also are the rear bump stops for 02 bounder stock or are they sumo spring, if so what is the height of those ( Carl Taylor, 11/15/2017 )

The dimensions of the SSF-280-47 is 5". The stock bump stops would not be SumoSprings, and they are approximately 3.5" in height.

I have installed these Sumo-Springs front and back as well as new Koni Shocks and stabilizers and saft-steer and the front end of my W22 Motorhome and am Very Happy with all of these upgrades except for the following problem. The front end feels like the axle is directly on frame with no cushion between. Is it possible that the Summo Springs or stops on the front are too tall and therefore the shocks are not able to do any absorbing of the shock? ( Dwight, 07/31/2017 )

The SumoSpring system is designed to reduce sway and help the existing springs support a load. In some cases they do allow for smoother contact between the springs and frame for a more comfortable ride but if the vehicle is very heavy on the front end and already compressing the spring it will actually make the spring "stiffer" and may be what you are experiencing. I would have your coach 4-corner weighed to see what your weight and balance is. This might also let you know that the tire pressure can be dropped, providing a smoother ride.

Do the Sumo Springs fit the UFO R26 Chassis?

( Duane Shaw, 03/02/2016 )

Duane,

Unfortunately they do not make a set of Sumo Springs for the UFO chassis. If you haven't already, the best suspension upgrade you can make on that chassis is the Koni shocks absorbers: UFO Koni Shocks

Hi Will these springs work on the front of a p32 chassis motorhome Cheers Peter

( Peter, 02/07/2016 )

Peter,

No these will not work on the independent front suspension that your P32 chassis has. These are designed for leaf spring front suspension. If you want to upgrade the ride on the front of your P32 I would recommend SuperSteer Coil Springs and Koni FSD shock absorbers.

Does this kit include 2 Sumo springs- one for each side? W24 2008 chassis

( Chris, 10/22/2015 )

Chris,

Yes all of the Sumo Spring kits are sold as a set.