This is similar to how my busted brake line project went. One little pinhole...led to replacing every single brake component except hydroboost and ABS module. And this was not "may-as-wells", this was "part A is bad, connects to part B which is also bad, connects to part C, etc." A couple days turned into 5 weeks, and a couple hundred bucks turned into $1,200. On the upside, this gives you a chance to fix things you didn't know were broken, and restore the truck's overall workmanship back to factory-like or better. It also gives you an in-depth opportunity to discover future may-as-wells too ha ha.