positions for helmets, arm, tyres

hello,
i have download some actual cars.
i look into the readme and see that there are only tyre position coordinates.
in some there are position coordinates for arm helmets tyres and lights.
if there are only tyres coordinates the other coordinate i don't have to change or must i find out my self??
so long
diam0ndcrush3r

I always use Teameditor for this task. In Teameditor you can check your setting-changes in real-time . It's just a question of a few minutes, until you're finished .

And you can do it with tweaker (RT-EDIT)...just let us now which car is it and I'll give you my tweaker settings (2012 and 2013 cars only...)