I'm using Strange 33 spline axles, Strange Pro-Clutch LSD, Ford Racing 3.73, Strange C-Clip Eliminators, and Strange Diff. Cover. I'm making in the high 400's. Launching at 4500 RPM's off a two step and 0 problems as of yet. Had the setup almost a year.
Moser 31-spline axles with a rebuilt carrier out of a mountaineer. Carrier has the carbon fiber clutch packs as well. Haven't had any issues with it yet. Car has been on drag radials the whole time I've had the solid axle and has been on bias plies a few times. Car made 494/498.