I noticed after running Ragnar pretty hard on the trails that my OEM front jounce bumpers were tearing. I also was looking for a little extra dampening during abrupt up travel due to my intentional low stance with only 2.5" of lift and 37s making the tires stuff pretty quickly so I did some research and was on the fence between SumoSprings jounce bumpers or TeraFlex Speedbumps. TeraFlex Speedbumps in the rear are similar to jounce bumpers so the real decision was what to do up front. I haven't talked to anyone that has tried them aside from MetalCloak using them on their test rig. I figured if it's good enough for them it's good enough for me. I got them installed and the difference is huge in the ride quality. It's a bit stiffer, but it's progressively stiffer. Below are some of the comparisons of the OEM vs SumoSprings both removed and installed. We''ll see how these hold up, but they're exactly what I was looking for so far ...
Comparison from the side:
Comparison from the top:
OEM Rear:
SumoSpring in Rear:
OEM Front:
SumoSpring up Front: