hi i was wondering if a 235 30 20 on 10 inch wide wheel is too much of a stretch i currently have 245 35 20 on mines all around im having slight and i mean very slight rubbing issues that im thinking a 235 30 20 may take away without having to mess with camber anymore while rolling as low as i can. i dont know if its a huge difference from one tire size to the next. i just want to get some opinions from those that know or have had a set up like it or if you have pics of what the stretch looks like would be great.

 

You will have 10mm less tire width (just under 1/3 inch) and the tire profile will be lower. The stretch will be made more obvious by the lower profile more than the one size lower width.
I'm running the same 245 35 20 on a 9.5 rim with slight stretch so 235 would be fine.