I`m sure the "backyard way" of doing it works just fine if you are on a tight budget and is close enough to not chew bearings or tires but in 2013 there are better more accurate ways of doing it, just costs a little more. I forget exactly how much my last one cost but it was somewhere around $500 which included buying the parts car for $75, having the housing narrowed and spring perches moved and sending the axles to Moser. I just wish I could find another $75 wagon parts car now!!