Originally Posted by 2000SilverBullet
Paul spewed grease a couple years ago from a boot also. It'* not uncommon, but doesn't have anything really to do with the diff. Just one of those things.
That was the year I still had the stock diff.
It was after that that I got the lsd and haven't popped a boot since.
Must be just my imagination then but I swear that I can get into full throttle sooner with the lsd. Without it, one wheel used to spin a bit after it hooked up in 1st gear and I went full throttle.
Where I really like it is when driving in the rain. Far less one legged redliners.
Yes clutches wear out. These units need to be rebuilt periodically. No doubt about that. Should last about 25,000 miles......for me that'* 8 years.
That'* why it'* 1/3 the price of a Quaife.
If you don't do your maintenance you always risk damaging things.
Paul, the clutches in your transmission will wear out sooner than the clutches in my diff. They are as hard as Chinese mathematics, self-lubricating, and the plates are heat-treated to 62-65 Rockwell C. The only diffs that blow up are stock units and Intense LSD'*. I have never had an automatic EP-LSD come back destroyed. Two guys running the Getrag 5-speed in sub-13-sec Quad4 drag cars, launching at 5500rpm and 6500 rpm both ran for two years before the spider gears finally shattered. In both cases, I was able to re-use
the clutches and plates!!!! the second guy totally destroyed the second unit when he turned up the launch rpm from 6500 to 6800 trying to nail the NHRA class record at 2-sec. under his index. That time, the spider gears jettisoned and the diff, trans, and starting line were ruined!
Sorry if I sound defensive, but I worked for two years on my LSD before I released it and I have customers with over 50K miles on daily driven track cars running in the 12'*, it has been 11.50'* at 450whp in a turbo L67 GTP on slicks before one tire would break loose on the 1-2 shift. So that is what I consider it'* limit, 450whp on slicks. Anyone here have 450whp??????
I am running my LSD in the 4T80E I swapped in my Bonneville. I am giving everything a good break-in before I go to the track. I am running only 3rd and 4th gear right now due to trans control issues, but it will break BOTH TIRES LOOSE at 40-50mph when the turbo spools up! So it'* going to get a good test this Spring!