D30 axle seals ????????????

I bought two axle seals for the front and plan on putting them on tomorrow. They were leaking and stopped. After a hard day in the woods they started leaking again. :angel:
Is this common?
Why would they leak after 4 wheeling and not all the time, the axles turn all the time?
Anyone got torque specs for the bearing caps?
Any other things I should look out for? (both u-joints and bearings new)

I don't know about the seals but the bearing caps are 75ft/lbs.

C same Post in OEM!! I was off by 10ftlbs on the caps! The teacher's brain is nearly toast this time of year!!!:anon: