Appropriate temp range for Slipperential?

[simplechamp]

The slipper pads are made from Ferodo material which can withstand very high temps. Rubber seals on bearings, not so sure? Haven't noticed any issues yet, but my buggy is due for a teardown/rebuild so I will inspect the fluid, pads, bearings then. Might switch over to the hardened steel endcaps to try them out.