yea i put the other side together fine so i dont know why this one is being sassy. But when i install the drive gear and springs i retract them all the way and make sure its on free. its got a bit of a hard spot at the end of turning it when its installed. Yesterday when i reinstalled it so i could be locked all around (because i couldnt make this little climb) i put the gears back in, unlocked opposite side and put truck in 2wd and the front driveline spun for about a revolution then caught back up and locked itself and wouldnt spin freely till i pulled the gears back out.