If you like going in straight lines
LSD options available that I know of:
1: Quaife ATB, pricey but should be a direct fit and you should retain your existing output shafts.
2: Precision Gear Power Brute, clutch pack LSD, search hybridZ for more info, once again should be a direct fit. Probably pricey once you get it over here though.
3: Viscous LSD unit from a 200SX. Have to use the 200SX output shafts, and so you'll need to get some sort of custom half-shaft arrangement to work, so probably pricey too.
4: Torsen unit from a Silvia S15, needs special output shafts (30 spline not standard 29 spline) similar diff to Quaife ATB, probably got a higher chocolate content than the Quaife though. Needs custom half-shafts too.
5: Try and get hold of a Z31 LSD from the US, for a couple of years they had clutch LSD or viscous LSD. Should be direct fit but probably costly getting it over here and probably a bit worn.
6: Completely redesign your rear end (oh er misses!) to use readily available UK diffs such as F*rd Cossies etc.
There may well be other options, the above are just the ones I know about.
Cheers,
Rob
