I've very recently had an issue with my LSD (yesterday) and ordered these from Opie Oils:
Silkolene BOA 90 LS High Performance Gear And Limited Slip Differential Oil -1 Litre
REDLINE Limited-Slip Differential Friction Modifier / Break-in Additive -0.118L (4 US Fluid Ounces) Bottle
They'll both be here tomorrow
I might be wrong, but I thought the BOA90LS already has the correct friction additives?
Kevin
I think so. The additive is there to reduce temps during initial running of a new diff, where the clutch packs and bearings are tight and you get higher than normal temperature.