* Larger Diameter: A 305/45/22 tire is significantly larger in diameter than the stock tire size for a 1999 Tahoe. This increased diameter will cause clearance issues with the fenders, suspension components, and potentially the body.
* Wider Tread: The 305 width is much wider than stock, increasing the chances of rubbing on the fenders, especially during turns.
To know for sure, you need to:
1. Find the stock tire size: Check your owner's manual or the sticker on your driver's side doorjamb.
2. Use a tire size calculator: Input both the stock size and the 305/45/22 size into an online tire size calculator. This will show the difference in diameter and width.
3. Consider wheel offset: The offset of the 22-inch wheel will also play a crucial role. A larger offset (more positive) might push the wheel further into the wheel well, reducing the chances of rubbing, but it isn't guaranteed. A smaller offset (more negative) is almost certainly going to cause problems.
Even if you find minimal diameter difference on paper, the wider tire and potential wheel offset issues will likely still cause rubbing, especially when turning the steering wheel or going over bumps. You would likely need significant modifications (like fender flares or a suspension lift) to accommodate such a large tire. Without modifications, it's a recipe for rubbing and potential damage to your vehicle.
