Due to the extensive leaks, I'm dropping the NP200 to replace the oil seals. The question I have is...do I need to reset the bearing preload if I just replace the seals?

I an pretty mechanical but have not torn into a NP 200 in past. I am sure it is a good idea to do it if I have it out anyway. It is just a new process and I am unsure of how to do it. Any sage advice is appreciated.

Also, I saw somewhere that adding a Lucas additive to the fluid helps in cooling/lubrication. If so, what was the product again? Thanks much.

Rick
14711