I am now having to rebuild my 3.5 diff. for the third time since installing the ATS Carbon LSD, the first time the installer replaced the side bearing, seals and setup the diff to spec this setup lasted around 4000km before it started howling, I took it back the diff installer and he just shrugged is shoulders saying the mods on the car where causing the problem ie to much torque through the rear wheels (ASP TT approx 400rwhp). So I purchased new bearings, seals, crown wheel and pinion for the full rebuild, I decided to use another diff/gearbox specialist who had built many drag and track cars diff's, after stripping down the pumpkin he said it was full of gunk and sludge which he suggested cause the wear on the bearings and gears he also suggested to replace the crushed washer with and solid bush to prevent pinion end play, which may have been caused by the higher HP of the motor. Anyway to cut a long story short this rebuild lasted 6000km before it started whining and howling, the installer said it's the new fancy carbon LSD causing all the wear and tear from the carbon getting into the bearings and gears acting like a grinding paste, I told him I've been changing the oil very 3000Km as per ATS recommendations, he is at a lost to what is causing the eary failures.

Question to all ATS LSD owners, how many miles since your install, what power are putting through the diff and how is it running ( I mean whining gear/bearing type noises not the LSD popping type sounds, which the ATS is very smooth in its action). Do you think all the carbon gunk created by the LSD to be causing the early failure? I do track the car and really love the way the ATS LSD works in putting the power the road, so do I replace the ATS LSD with a Quaife ATB LSD?

Cheers cheers.gif