Lionel Early 90s Dash 8 40C gear mesh issues??

[KRM]

I have 3 Lionel Early 90s Dash 8 40Cs they are:
NORFOLK SOUTHERN DASH 8-40C 4,000 hp DIESEL # 8689
NORFOLK SOUTHERN DASH 8-40

[rtraincollector]

sent you an E-Mail Kevin