How do you guys break in your motors or your gears, when you can't go on the street? We are talking rebuilds and break ins at school and I started thinking, how am I going to break in my 383???? Put on 500 miles? yeah right. I doubt I'd make it 4 times around my block with what the S10 is to become and not get pulled over. My only thought is dyno time, chock the wheels up, or build an engine break in stand. For the rear, my buddy claims his dad has done it a few times to just lift her up and run it. I could probably break in the axle on the street, but the motor just couldn't happen.