How do you get a Suspension to hook, when the track surface is marginal at best

Not a lot of progress with this blast cold weather but did buy my new slick and mocked them up.............i think my wheel well lip is going to have to be trimmed, even with my .080' inboard spring relocation. It looking real close on the inside of my factory wheel tubs as well.

Got the slicks! now need to figure out what back spacing i need and if it can be had with the wheels i want to buy.

Any ways took a pic, starting from the left, my first slick. it was a cheater slick recap, then my M/T 26x10x15 to my now 28x10.5x15

When you read the spec's it said that the side wall clearance is 11.5 for the 26 slick and 11.7" for the 28 slick.
You can see in the picture there a lot bigger sidewall. I own them, got to make them fit now.

They sure look nice in the wheel well opening!
IMG_1194 (2).jpg