Thanks for the help and reply but i messaged the seller and he stopped replying my messages for some reason and i have seen that he is active on the board.
As the title says looking for a good condition OEM DC2/EK9 LSD, if you have or know about one for a good deal since all we know for how much they go please PM me and thanks.
I think that your problem has to be with mounts and/or shifter bushings, i suggest you getting aftermarket ones like, spoon/energy suspension etc, good luck mate.
Honda new MTF formula, GM synchromesh, pennzoil synchromesh, royal purple synchromax, will do a good job, it also depends if you have gear grind problems and the use that you give to your car.
I suggest calling Tegiwa and sending them some detailed pics and specs like measures of your original clutch kit to see of they can identify it and send you the proper for your application, they have good customer service, ask for Johnny and good luck.
I would do the S4C since with the LSD and 4.78 FD will have faster gears than the stock 98+spec ITR transmission, but for me really seems to be the same kind of work/price doing the 2.