4x4 not working.
When i put my truck in 4wd, it engages and the lights come on. But when I hit the gas, it makes a popping kinda sound, and the front tires don't spin. I though it had something to do with the front driveshaft, and I replaced that today. It must be something else, cause it still doesn't work. Or either the driveshaft i got was messed up too. Oh, and it's a 2002 ext. cab with the 4.0L.