Hey guys I have an 08 Silverado ext cab 4x4. My truck didn't come with a tow package and is not z71, so it doesn't have the g80 locker in the rear end. I've been thinking about putting one in but the prices for a new one are lots more than I want to spend. So here's my question: if I were to go to a junk yard and get a rear axle off a similar truck that has a locker in it, could I just swap the locker into my truck? I have the 3.73 gears now will that make a difference in what locker I need to find? Thanks for the help!