wheel sets for ER-Models/Bachman "Sharks"

[bnoem1]

I'm looking for replacement wheel sets for the Sharks that were initially made by E-R Models and later taken over by Bachmann.  Are there any after market replacements?  Do any of the N scale diesels by Bachmann have the wheel sets that would be a replacement?  Thanks.  Problem is that the white gears on the axles are splitting -same problem with the early Spectrum GE- Dash 8 wide cab diesels. 

[brokemoto]

Northwest Short line used to sell replacement wheel sets for the PLUS F-units.  NWSL went bankrupt, was sold or something hapened.  Its current catalogue does not include those wheel sets.  There may be some out there as NOS.  Rumour has it that they will fit the Sharks.

Some modellers have had success gluing the axles back together.

[bnoem1]

Thank you!  I couldn't remember which they were and I couldn't find my info about replacing the Bachmann wheel sets.  Much appreciated.