Custom Rims on A-Chassis

[8 NEW CARS!] Driving Empire - Roblox Driving Empire has custom rim options for a-chassis cars, don’t need any code per se but any ideas on how to do this?

I’m having issues with getting the exact position on where to place the new rim, (there is no standard offset I can use), tried using the previous rim’s position as well and as there’s nothing exactly standard I can do). Any ideas how I can create multiple rims without individually retrofitting them into each car?