First and foremost, waaaaay wrong forum for this thread. Second:
With that out of the way...
znelson wrote:There is a good writeup on this if you search, however Ill shed some light on the subject for you.First, DO NOT weld your open differential. It will be nice in straight lines but it will turn horribly, and I mean horribly. If you want to drift, get this option out of your head right now. As far as what type, depends on how much money and how much time you want to put into the LSD. The easiest straight foward swap would be a VLSD from either an s13/s14 depending on your year. Make sure if you dont have ABS to get a non-ABS VLSD, as I believe the driveshafts are longer with the ABS equipped models. Second, make sure you dont get a VLSD from an automatic, as the gearing is different from the autos to the manuals. Last, you can choose between the VLSD listed above and a helical LSD. The helical LSDs are a little more efficient than the VLSDs, as there is no delay between locking the wheels. The VLSD relies on friction from spin to heatup the silicone base to expand to lock the spindles. Helical LSDs use teeth gearing to lock both spindles in REALTIME so there is no delay like you can feel on a VLSD. The price difference between the two is pretty steep though.. around $400/500. For simplicity and price Id reccomend the VLSD. Of course, if you like to do things yourself you could find a Q30 LSD at a junkyard and just gut it and place the internals in your pumpkin(the differential case) and be set, I dont think you need new spindles, however I could be wrong.Anyways, goodluck, hope this helped.
There are two problems with this post (as I have indicated in red). First, it's my understanding that HLSDs are less than ideal for drifting. There are at least three threads (and one within the last month and a half, or so) where that sentiment was hotly debated. I won't get into the welded diff thing, but I will mention that there are also several threads where the pros and cons of that were discussed. The other issue is that the J30 diff (pumpkin and all) can be swapped onto an S chassis. The only requirement there would be getting either 6 bolt output flanges for the diff (to match the 6 bolt 240 axles) or getting matching 5 bolt axles.
Not giving you sh1t or anything, just making sure misinformation isn't spread.