Max tire width keep decreasing every time suspension type is changed

I was using the 3m wheelbase 10s prototype body with no body morphing (yet), no rim offset and the default 71R18, and, but every time I change the rear suspension type back and forth between pushrod and dbl-wishbone, the max rear tire width decreases by 10 (now it’s on max 275mm on dbl-wishbone, while I can fit 360mm on dbl-wishbone on another car using the exact same body no body morphing, and same 71R18). I was not doing anything else. Any ideas on why this is happening?

Hey, do you have any more information on this issue? Could you provide a screenshot/video of the issue? Also having the .car file that this is happening with would help in finding out when and why this happens.

Thank you for the reply!

Model_2_-_Trim_2.car (91.8 KB)
I do have the .car file.