Murray is a 3" tall frame I used 6x9 wheels and 12x9x6 tires. axle is laid on the framewith mounting hardwarepush the hardware up to frame get square tack in place. Remove axle and cut the frame where it sit. I have square tubing run the length of rame. So basically I cut/remove the top of the frame exposing the square tubing. This gives axle clearance and puts me at 2" ride height.