Does anyone know where I can get a limited slip differential for my 87 B2600? Does the 4X4 version come with it standard? Or are there any other cars/trucks that have one that will fit? If so I might be able to get one out of a salvage yard. Any help is greatly appreciated.

I dont believe any of them came stock w/lsd rec checking in the aftermarket i have looked before but never came up with anything. good luck