FMX Auto Rear seal oil leaks?

I have had gear box completely rebuild but still leaks out the rear seal. (it is definately coming from rear seal) Drive shaft measures up ok . Could any thing else cause leak.


Thanks RickFMX Auto Rear seal oil leaks?
depending on the year, the drive shaft could be worn to the point that the seal can not reach a sealing surface. you could pull the drive shaft out and examine th transmission output yolk, and look for any damage. at the same time, look at the seal it self and make sure that it looks like it is whole.FMX Auto Rear seal oil leaks?
i would say changing the rear seal should stop the leak, but oil the seal before installing the driveshaft so you wont mess up the rubber seal.
Nothing I can think of......if you're sure it's the seal then it must be the seal installed improperly.