Aftermarket Buldged Fenders

I am looking to buy new fenders for my truck, and I was wondering if anyone knows how far out from the stock fenders a four inch bulge would be? Also if I would be able to get wheel spacers to reach out far enough or if I would have to buy something extra?

 

I’m no mathematician but I think a 4” wider fender would bulge out 4” past stock and require a 4” spacer to stick the wheel out that far.

 

Ok thanks lol. I didn't know if it was four inches from where it attaches or four inches from the stock fender.

 

It’s mostly for trucks who run wide tires. Like 35” tires or are long travel which pushes the suspension out