Removing the busted halfshafts and replacing them is really quite easy on this year Chevy. All you do is turn the front tires so you can access the shaft from behind. Then remove the shock and the bolts holding the shafts in (ours uses a large 36mm socket on the stub), and everything comes right out. If you do not have a spare halfshaft you will need to reinstall the stub CV portion into the unit bearing in the knuckle. If you do not install the stub, the unit-bearing will not be contained and will come apart as you drive home, allowing the wheel to fall off.