Hello, I need some help on the 2010 lockers. How do the 2010 4x4pro stalk locker, compare to top end lockers vs, low end brands of lockers? Also I would like to know how the locker is engaging. The 2010 4x4pro truck that have been looking at has been in a crash and they had to replace the rear axle. I was wanting to test driving and see if the locker engages properly but I am not to familiar with lockers. I put the truck in park then turned to 4L after I flipped the locker switch and then put it into drive. I turned left and right going about 2 to 4 mph to try to listen for the engagement. The locker didn't seem to engage, and the locker light wouldn't stop flashing. I have read that it should turn off. Also what are some things to look for when buying a a used vehicle like this? It could be anything Major to anything minor just give me some info please. Thank you!!!