so i had to do some repairs on my exhaust on my truck. so i threw it in 4wd and locked my front lockers to keep the truck from rolling when i lifted the rear of the truck up. now i have this binding happening in my front end. ive unlocked everything backed up got the pop locked in 4wd still got the popping. the popping is also rythmatic. so i have no idea whats going on with my front end. any suggestions?