dude...heres the deal. you use the pumpkin the diff comes in. you just change the back cover to your S13 cover. you dont need to swap the diffs out of the pumpkins. furthermore, if you get JUST a diff and want to put it in your pumpkin then you are either goign to have to buy LSD outputshafts ...and theres like 10 diffreent types...or have yours custom machined (talk to mattback). when buying a used VLSD for your car please specif to your parts suppler that you need the entire diff assembly with output flanges. adn that the output flanges need to be the 6 bolt variety.

An ABS S14 / J30 diff will work just fine in your car. the clearance is tight but it works fine. i have aone in my car with no problems and no custom mods to get it to fit.

Scott