Yeah it's not hard to do... but you'll need a beam style in-lb torque wrench, the click-style won't work. Definitely want to make sure that you get the correct rotational resistance or else you can ruin the bearings/gears (too tight will damage the bearings, too loose will damage the gears due to pinion slop). So the price for the torque wrench is well worth it...

Money well spent: http://www.amazon.com/2955-Torque-Wr...1438124&sr=1-3