I have a 1994 gtx and I am in the process of rebuilding the pump and I would like to change the seals in the bearing carrier that the drive runs thru. does anyone know the seal numbers or sizes for these seals and if they can be replaced or do you just replace the whole unit. I have a polaris the I have replace these seals on and they do not cost much and are very easy to replace. just picked up the seadoo and want to make sure everthing is in good shape before I take iout on the water.