Upgrading K-Line Scale Hudson Drivers

Lionel's a couple of versions of Lionel's scale J3a have driver attached with screws; the

Empire State J3a has pressed-on drivers. I can only suggest that you get a set of

Lionel and MTH press-fit driver/axle parts and do some measuring and a lot of "Hm-m-m".

The screw-ons may work (you have a shop; the screw goes through the driver into the axle), and Lionel has had them available in their parts inventory.

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Modern drivers are pressed on much more snugly than they were in the old days. I've never pulled any, but I hear that breakage can be a problem. Theoretically you don't care,

but...

Type of puller? Try Olsen's Toy Train Parts; not their area (modern items) so far as I know,

but they might have some suggestions - maybe even a puller. 

I 2- railed one of these, and do not recall any issues when removing drivers from axles.  I have not seen accurate Scullin drivers, but they are dirt easy to make if you have a lathe.  I just machined some brass, drilled holes, soldered and machined the crankpin boss, and pressed on.

Thanks!

 

I'll have to start shopping around.

 

- Mario

I have a set I can sell you that might work. They are the screw-on Scullin drivers with D-shaped axles from the Lionel 2001 J3a. I suppose they could be modified for press-on installation; the important thing is they are also foreign production so they should be the correct smaller scale dimensions. Please email me if interested.