The fronts were bought April 26th this year, so maybe 100hrs ( it's only 4 yrs old, has 800+ hrs ). The electrical staple may have come from the 'reno' of the neighbour's house,3/4ac place with shop and 32 vehicles on it last year. The crusher run is so compacted ,even a single tooth on the BH will NOT rip it up. Funny stuff, once busted up, it's 'gravel', drive over it 10-20 times, it's like concrete ! I know I was loading 100yr old retaining wall rocks and the area next had the old fireplace remains. So far have moved 300-400 buckets of rocks 'offsite' in the past 3 -4 weeks.
Only cost $30 for Kubota dealership to plug the tire and guys said 'good to go'. if it fails ,no big deal $240 for another.
Now IF I could buy the Kenda tires , I would as I do a 50/50 mix of off/on road travel.