I tried a new setup this weekend and it was unreal how well it worked i tired 3-7-1 in the diffs and Mugen black clutch shoes and mugen 1.0 springs. and a ofna 13 tooth vennted clutch bell it was unreal how fast it was. I might try 5-7-1 though. Does any body know where i can get some 2000wt diff oil at?