4x4 chucking/ binding
 

ok heres the deal i have a 93 bronco with a strait front axel off a 78 ford and my trans case motor first went bad before winter left it sit for a while and now long after my rear end lsd locker broke so put 3:73 ratio back into the truck cause thts what it said on the main ring and pinion gear on the old ones now i replace the trans case motor and now my 4x4 is almost as if it was binding up blike the left tire wil make big ruts and tear up ground as if it was not spinning as fast as rears i am pretty sure it has same gears as rear but is there anything else it could be idk brokend hubs axel. somthing idk any ideas or something i could do to find out o and 4x4 did work before winter and stuff