Hi, in my quest to find a cheap street locker for my blazer ,I have found a 14 bolt rear end at the junk yard out of a 77 camperspecial with the factory code, "G 80 locking differential ". It has a 4 pins in the closed carrier. Is it an "Detroit locker "??? If not what is it ???Can it be rebuilt ?? How does the 'wms' compare ??The other rear end that I currently own is out of a 88 'won-ton' .Are the parts interchangable from those years .A big concern is brakes ,but probally could be made better with rear disks if its not 'won-ton' stuff allready . I know a detroit locker is the ticket for a bolt in ,but they are not too street friendly . What kinda of a detroit 60,70,80 would be good to put in the blazer with wms considered ?? I would like to get one of these so I could put a selector type of locker in the rear end at a later date when funds where funding . Cheers ,thanks in advance !!!!!!