The company is called DEI and the parts can be purchased at Jegs.com or summitracing.com. I think it's kinda pricey for what it is tho.
Mike
http:\\www.c-ya-racing.net
The force between the 2 "side" gears caused by the outward force of the angled "pinion" gears can be of great use. I have developed a "LSD" kit that can be installed in a front wheel drive transaxle that uses this outward pressure to engage paper friction plates...