SCS Ray 10 Offset Determination

My oldest son has Ray 10’s on a 2017 TRD OR and no rubbing at all running Nitto Ridge Grappler 285/70/17. How can I determine which offset the Ray 10’a are?

Is there a way to figure this out without removing a tired and measuring from the back side of the rim?

 

Look on the web site, I believe the Ray 10 comes only in 2 offsets and either in a 16 or 17 inch rim. I know for sure they have a -38 and the other is a -10 or -12. The -38 requires more work to get it to not rub. You can also tell by the lip and how much the tires pock out.

 

Correct they are -10 and -38. If tire wasn’t on the wheel could easily measure the rim as the 9” is -10 and the 8.5” is -38. But don’t want to have to remove wheels or tires

 

-10 in size 17

 

If you can get a picture of the lip I can probably tell you

 

If the wheels poke out pass the fender flares about a inch or more then probably -38 if there more flushed with the flare probably -10 this is considering there's no spacers

 

Here's my old truck with the 17x8.5 with the -10 offset wheels but I had 305/65/17 tires. The 17x9 with the -38 offset will stick out a full inch farther than this.



Here's a picture I found from another member with the 17x9 and you can see how much more it pokes out.

 

Thanks. Based on above pictures I’m guessing these are the -10. Trying to post a picture now from my phone

 

Two straight edges on either side of the rim lip and measure in between the wheel. That should give you wheel width.

 

-10

 

Thanks guys