im not sure if I should replace any underchassis part from my vitara since I dont feel anything different from driving it but this bothers me a lot.

the clearance from wheel to fender is different from the left and right. The height is the same but the space at the end of the wheel well is different.

I think I had a siumilar problem on my Sidekick.

I fixed it with a sledge hammer.
You may say that a sledge hammer is not normally considered a sheet-metal tool.
I say it works just fine!