Sometimes larger than stock tires need a little help clearing the fender or they might rub. In this case, I have a 2022 four-wheel drive Mercedes Sprinter cargo van that I just converted into my camper van. I installed method wheels and Toyo tires: 275/70/17. This is about 32 inches and is considered to be the biggest tire you can install without a lift.
However, they do rub in the front fender. I am going to show you how to modify those fenders for FREE! to fit 32 inch off-road tires.
You can see there's not much space there. So what we're going to do is take the stock mud flap off, cut the fender, and then bolt the stock mud flap back up and have enough clearance that it won't rub.
We've turned the front driver wheel all the way to the driver's side so we can work on this area. Grab a bungee cord to pull the stock plastic back.
Remove this clip.
Put a piece of blue tape for our cut line. Make the cut with a cut off wheel on a 4.5" grinder.
Now we just need to bolt the mud flap back into place. Use the stock holes to re-mount the mud flap.
The next step is to put a self-tapper on the bottom through the mud flap back into the front fender from underneath.
Go for a test drive and flex it out on every bump.
Different tires all have different profiles so your experience may vary.
If you need to go to 33s or 35s, you're going to have to do a lot more cutting than this.
This is a total DIY easy free mod that you can do to help clear those 32's.