I just installed front and rear Sumosprings on my 2017 MBS 2400R. I highly recommend them. I bought them at SDTrucksprings.com for $355 total. The ride and handling is much better, and I still have the oem shocks.
The install took a total of 2 hours, mostly due to my learning curve. The first one of each was a pain until I learned the procedure, and the second was a piece of cake, and I am 65 and not a mechanic. For those who might be hesitant to attack the job, here is how I did it.
On the front, I just jacked up one side at a time high enough to open the space where the bump stops are, and turned the wheel to the outside to make room. I removed the old stops with a 13mm socket. Getting the new ones in was a little tight but they went in. Threading the washer and nut onto the new one was a challenge because the bolt was down in a hole and I knew I would drop the nut in it. I used some tacky glue to hold the washer and nut in the socket and it worked like a charm. You will need a deep well 13mm socket to tighten it.
On the rear, I used the stabilizers to raise the frame enough to open the space above the axle. The old ones just pull off with a little twist. Following the instructions to install the new ones, tuck the larger tab into the front of the bracket. I then tried to bend, twist and pry the rear tab in to no avail. I then just pushed straight up and the rear tab popped in. It was almost too easy.
Retract the stabilizers, put away the tools and go for a ride. You won’t be disappointed. I hope that this helps someone save the cost of installation. If I can do it, you can too.
2017 Sunseeker MBS 2400R