have any of you guys ever ?

Wheel spacers if you have room to the outside. Spring offset or relocation if you don't. The 1/2" offset will get you all the space you can use with the stock tubs, so the 3" relocation is kinda pointless without a mini-tub. But both require moving the perches. Or buy tires that actually fit. You wouldn't catch me cutting springs to add tire clearance. No, the spring probably won't fail, but who knows what you'll get for spring rate and performance when you're done. I've seen leaf springs fail (they crack) but those have all been on commercial trucks.