I'm thinking of next summer when the Z may see some more track and autoX time. The car has lived 37 years so far without an LSD, but a company called Phantom Grip advertises a bolt-in device for any differential that converts it to LSD...no special anything required.

Do any of you know anything of this company or its product? Their reputation? Product performance?

Thanks,

Crap. I think the name is appropriate. It "grips like a phantom".

Not another version of Snake Oil:tapemouth

It sounds too good to be true but I guess someone will have to try it to find out.

It sounds too good to be true but I guess someone will have to try it to find out.

It's been tried. Do a search over at hybridz.org and you'll see quite a few posts on it. It's a shitty idea, and as a wise man once told me "If you make ice cream with $^!# you get shitty tasting ice cream."