how should I go about doing this...just a regular 1/2in ratchet or impact wrench? also, should I be worried with the cold temps if the bolt will be brittle or anything? Thanks

 

Ratchet. Some say put your frontend on jackstands so it turns easier.. but I never had to do that. Mine turned fine... If your cranking them all the way then go for it, but if your only wanting to lift it a little, remember how many turns you do. I would do 1 turn on each side at a time.

 

Don't forget to get an alignment when you're done cranking them.