LSD posi rear for spiders

[Marc]

This is the link to Phantom Grip.You can have a stock rear made into an LSD for your spider,or just about any Fiat for that matter.Some simple, machine work might be needed on some differentials.I believe Vicks is selling this set-up in the 3:90 LSD they are advertising.here is the Link:
http://www.phantomgrip.com/

[wildman]

I have one in my spider, havent had any issues with it.. it seems to work well.

[teammo]

Has anyone found even lower gears like 3:50 or so to bring down the RPM's. It seems all that's available is 3:90. thanks.