Whats the EZest LSD that i can drop onto a 92' S13. I read that J30 is the EZest but what all do i need off the J30? also is onlt the 95+ J30z only ones with the Visious LSD or do they all have Visious LSDs? or does the 95+ have VLSDs and 94- have LSDs? anyone that know really good info bout all this or know websites please post. Thers like 10 J30z in the junkyard here and i wanta drop it on my 240 ASAP.