I have a spare 489 case with 2.76 gears and an open diff that I'm planning on rebuilding but with some sort of "positive" traction device (I put that in quotes because I'm using the term loosely) such as a Sure-Grip LSD or maybe a Tru-Trac LSD.
But, now I see that there is a new-kid-on-the-block in the form of Doctor Diff's "Sure-Trac" LSD.
Has anyone here had any experience running this? Should be similar to a Eaton Tru-Trac, but better/stronger since it uses two more helical gears.
If you're not sure what I'm talking about, then here's the link:
8 3/4" Helical Gear Sure-Grip ("Sure-Trac")
