20" tires question

[redhawk]

I spent some time searching but not finding the answer, I purchased a used 07 tahoe 2WD and it came with 20" wheels and 275 55 20 tires. The front tires rub the inner wheel well at full turn. The tires are mastercraft so I plan to replace anyhow but wanted to ask what is the largest size I can run on these wheels without rub and without having to mod the suspension.

 

[Lowufo]

That is the stock 20" tire size so not sure why they would rub...... different brands of tires can have slightly different over all height etc. The tire shop should be able to make some suggestions.....

 

[kntrydr]

I don't think your problem is the tire size but the back spacing I am guessing that you have aftermarket rims I run 20's on my 07 2wd 305/50/20 and don't have any problems if that's the case I guess the cheap way to go would be spacers to push the rims out but to be honest there not the greatest things in the world

 

[redhawk]

I checked a few other trucks in the parking lot, saw some others rubbing as well with same size tires and stock wheels. It's a minor rub inside the wheel well I am guessing most people don't notice it. It only occurs at full lock and in reverse, it catches an extrusion on the inner wheel well plastic. I think I will just shave off the extrusion of the plastic with a dremel and call it fair, Thanks for the feedback

 

[bigpapapete]

tire

I have aftermarket 20" same issue minor rub full lock in reverse but only one side and only locked in one direction

 

[anglarry05]

I never noticed but now im gonna look

 

[pitbull73]

the offset must be correct for no rub 22s and 24s will work

 

[bakdrft]

good idea

 

[Mariner]

The issue is offset. The stock wheels on most Tahoes is 31mm. Very few aftermarket wheels are available in offsets over 25mm (I'm actually aware of none) and most are 0. I bought replacement rims (20"x9") without paying attention to the offset and ended up ripping off my air-dam and wearing a 4" round hole in both wheel well liners in under 1,000 miles. Switched to a 25mm offset wheel, and all was solved. So, pay attention to the offset of the wheel before you buy.

And no, spacers will not work, because you are looking for positive offset, not negative. The rubbing occurs on the outer edge of the tire when it is turned, meaning the wheel needs to be moved closer to the centerline of the vehicle.

 

[Brett Miller]

I have had many trucks with oversized tires and most trucks I have had having an adjustable steering bump stop on the backside of the hub. Should be a big bolt just below the knuckle. Screwing this in a turn or two will reduce your turning radius but will prevent rubbing at full lock.