After driving about with a toasted posi for about a year, I am set to do my posi/31 spline axle swap tomorrow. Anyone have any advice or links to any walkthroughs? Is this something I can feasibly do in my garage ? From reading, my biggest fear deals with the gears backlash and such, as it seems to be the most measurement intensive. Should I be worried? I'd basically be keeping them in there and just pulling out the posi and axles.