will it do this with out cutting the axle
Its not likely that the spring perches will be the same width. What is the axle out of? Is it a front or a rear? More info needed

How so? Accually id rather bolt than weld to my frame. unless of course i had a certified welder on hand. then maybe id put him to work. I can weld very good. but i would bolt over weld in a heartbeat. (on roll cages and exhaust.. ect.) Lift brackets.. Definaly bolt! IMO...