I tried using the wheel guide and am confused now

I am trying to see if these wheels will fit

19x8 - 45 with 245/35
19x10 - 30 with 275/30
- wheel and tire sizes given by supplier

now when i entered this info into the guide the fronts seem to work but the rears do not as is, but if i change the tire width to 255/35 it seems to clear

am i doing something wrong or will these work with the 255's

thanks a bunch

 

Tire size up front is completely wrong. Offset in back is WAY off.

Front tire size should be 235/35 19 (245 is too wide!). Rear tire should probably be 265/30 19, but 275/30 19 will work (a bit tall though). Offset at the rear needs to be at least +42. I would say your "supplier" doesn't have a clue.

 

I'm running 19X8.5 +39 front with 235/35/19, and 19x9.5 +37 rear with275/30/19 no problems. Running Tein coilovers.

 

^Do either of you guys have pics that are running 19's? I thought that 18's were the max to run safely. Thanks!

 

Here you go.

 

Another one.