Using OpenIV, with 'Edit mode' on:

	1) Go to mods/update/x64/dlcpacks/dmudcsilv/dlc.rpf/x64/levels/gta5/vehicles.rpf/ ;
	2) Open up udcsilv.ytd;
	3) Find silverado_windows texture, right-click on it, select "Replace" and replace it with the option you want.