Great mod, really love the Whelen Liberty II. how did you get Britishgamer to unlock the model for you? Me (DevinKan from gta5-mods.com) and OfficerWalters (MrPrime) have been trying to contact him, with no luck. He has been ignoring us. Can you give me the model unlocked (not your park ranger edit, the stock F150)? If so, I will keep all the credits in the description of my mods. Contact me at devinkanmods@icloud.com. Oh and also, to fix the backrack that shows up sometimes, in zmodeler enable L0, L1, L2, & L3 views, and then make sure the backrack is where it is supposed to in all of the quality settings.