Review on LUBE LOCKER LLR-D030 Lubelocker: Superior Sealing Solution for Optimal Lubrication by Mark Crawford

Fits as expected, not sure about reusability as I no longer have to change fluids. Update: I got a seal leak after a few months knowing I didn't hit the bodywork on anything as the car isn't coming off the pavement, I don't know why. I re-checked the torque of all the bolts and it was within spec so I suspect I have a failed gasket. I ordered a replacement as it looks like these are the only seals available otherwise it is a custom TV silicone which makes a mess and makes it more painful to service the diffs.