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this car needs tb's.

yes, video of lionel at the traffic light grand prix!

LET on st management is fine for track. A lot cheaper than TBs but TBs are better for track i think.

What splitter is that?

I'll have a stab in the dark with a jack under either side of the car

Why not just buy some female rjs and screw them on with a locking nut?

Yep that how mine run