No cracks in mine (yet), but it does seem to be getting sticky. Got my letter from Toyota. Gotta love it...10 years later and they are standing by their product, and I'm not even the original owner.
I just bought a nice one for my AR's and such (holds 2 AR's and 2 pistols). Also works to transport my over/under as long as it's broken down. I bought it because it was the only short decent case I could source locally (Sportsman's Warehouse). The 4Runner has a pretty small cargo area and...
3D printer help? Someone on here has one. Also, is there a way to prevent this problem from happening in the beginning? Trimming the spring? Or lubricating something?
Lots of boat trailers have surge brakes that don't require any electrical connections. They just apply the brakes automatically by squeezing a hydraulic actuator. You may not need anything.