Why not just have the seals and bearings replaced and leave the gears alone? I very seriously doubt your r/p's are broken or messed up. Sounds like seal issue most likely...

Remember, seals keep oil in, so if oil / fluid is getting past the seals to the outside, most likely a seal. You don't seem to indicate any other problems or symptoms that would lead one to believe the r/p's are messed up....

Thanks,

James