My key won't turn off my truck completely and stays stuck

Hello, this sounds like it could be a steering column or shift lever interlock concern. It's impossible to guess from here, but those are "possibilities" since you've already replaced the ignition lock cylinder (Is that what you meant by "switch"? Because if not, the cylinder could be a concern.) The shit interlock could play a part, because if the ignition cylinder does not see the lever in "park" it will not shut off the whole way. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.