Fortunately, I got my lift pump replaced under warranty. All mods were left installed when taken in for repair as I was prepared to be my own warranty station. The lift pump was replaced by a dealer located in Colorado Springs, CO. Haven't experienced an injection pump problem, yet.
I now live in Oklahoma and recently had warranty work (upper/lower ball joints and track bar) done by a dealership in Arkansas. Was suprised they did them because the service writer mentioned that the service tech stated I modified my suspension. I didn't, but what the tech seen was my steering box brace. The tech probably didn't know what he was looking at, or know its function. Technically, however, I had modified the steering.
Not sure what I'll be faced with if/when I return for future warranty work. Just hope I wasn't "flagged" in the system. If so, at least I'll have control over the replacement parts going on my truck...
Dwayne