TEST RESULTS.announce1
...I still ordered three sets of drivers with traction tires...
Just a heads up...
Unless you own more than one loco, you'll only be able to use 2 sets of these drivers at most. (Possibly only 1) From what I understand, you really only need 1 set.
On a Kato 2-8-2, there are 4 different sets of drivers. -See attached image-
The #1 has round crank pin holes.
The #2 has no holes, and a large counter weight.
The #3 has square crank pin holes.
The #4 has no holes, and a smaller weight than the #2.
Also- 2,3,4 are powered. #1 is not.
In theory, the #2 and #4 should be interchangable.... but seeing the difference in the size of the counterweight, they might have other small differences in design also. I would do some very careful testing before fully settling on using a #4 traction tire driver set in the #2 spot.
If you truelly want 2 or more sets of drivers to have traction tires, I would find a competent person to mill the wheels and add your own using the Kato replacement tires.