I put a Truetrac, which is a helical LSD, in my longbed 2wd Nissan Titan, which uses a Dana Super 44. I used to get stuck in simple places, a lot. The most embarrassing of which was probably the time my truck was rendered totally helpless by a piece of PVC pipe used along a driveway as edge trim. Since I got the Truetrac installed, I can now get stuck in much more challenging places!

In all reality, it's been mostly great. I very rarely notice it doing it's thing; it's mostly unnoticeable. Had heard horror stories of trying to make sharp turns on wet pavement, but hasn't been an issue at all. Don't get stuck on muddy forest service and camp roads anymore, nor has snow been an issue, although I attribute some of that to snow tires. About the only downside is I appear to have lost about 1.5 mpg. Doesn't sound like much, but you do notice it when you drop from 15.5 to 14 MPG average.