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How do you change models? I am using blender and mesh lab, but my new textures are poor wraps and even though I add different 3d object models its still shows the same ones? Thank you for all your time and consideration. It is a wonderful mod!

You would need to switch out the .obj files. I'm not sure if this is possible with a resource pack. You would need to replace the files in the mod .jar

Well that is very interesting. In mine they are .MTL files, is it bad they aren't .obj? I have switched them though. Sorry if I worded it poorly, but that's what got me stumped.

It has to be .obj The parsing of these files is also very restricted, so you might need to tweak some export parameters in blender.
I won't explain the limitations and stuff here, since switching models is not officially supported. If you want to see how it works, you can always read the source code.

I understand your reasoning completely, and that reply has been such a huge help. I knew something was just off when it kept popping the same model and that explains it. I will try to understand the source code. Thank you so much!