I think it is time for you to step up your game. I have better brakes, which came in handy last weekend. Better tires.
I think you need to take responsibility for the whole under-carriage. I mean, upgrading springs, wet bolt things, timkins, what ever they are. As I see it, you have only gotten me 2/3rds of the way there. I could even imagine annual maintenance and inspections.
Ron, time to step up your game!