XRAY - Model racing cars

i bought some wheel hexs of ebay for my xray t3 the original ones were black but these are silver i measured the thickness of the silver ones and they are the same as the original black ones but since using the silver ones i seem to have less steering on the car on the back of the hexs were the drive pin fits can this be deeper or less deeper then the black ones ? if so this could affect overall width of the car ? thanks

If you measured the thickness and it is same, the car will have the same width with both hexes.