If you got it from Rancho it's probably a Peloquin torsen style lsd. It is essentially a Quiafe in operation and design but was made specifically for the VW transmission cases. A 3.88 r&p is the end of the range it will fit, though, so no 3.44. I have this exact one in my type 1 transmission. I figured that with a worked Subie in my coupe, and often wet roads, it would be prudent to have one...also, hole shots.
Many will argue that a torsen gear type differential isn't a true lsd and that title can only be assigned to a clutch type. There are a few ZF clutch types out there for a type 1, and they are quite sought after. If you are going to go Subie transmission you'll be able to get a clutch type (OS Giken), a torsen (Quaife, or Wavetrac which I think has adjustable preload so it acts a little more like a clutch type), or just a stock Subie torsen lsd.