GTL Wheel question

I want to make wider wheels for the Austin Mini but I have a problem

no matter where I postion the wheels in 3d sim they stay in the exact same place in gtl/gtr on track... the whole car and wheels are off the ground as if its a space craft... is there a setting somehwere to adjust wheel height on screen (track) as in showroom wheels are in right place

it's ok i've fixed

and what was the problem?

yeah, do tell, Ron.....

The tyre size in the *.tyr file?