JvanGroup

2018 Sierra, 30K miles - in addition to the rusting frame, which seems to be addressed in a service bulletin, has anyone experienced rear shock rust and color fading? The upper shock is now pink and lower portion is rusted so not very attractive. In quick search, it seems that the frame rust issue is largely cosmetic and involves an isolated # of K2 trucks. Wondering if they are all trucks out of a specific plant or geography? Was even thinking maybe flood/salt water (Hurricane Harvey or similar). Any insight would be appreciated.