I"m replacing the old shay trucks with the new metal trucks.
O.K. so I take the old trucks of the older version SHAY per instruction .
The next part seems simple…connect red wire to red and black to black… right !!!
The front of the shay has two black wires, and the front has two red wires…
You can not make this sh*t up!!
HHHMMMM… ??
Sean
Very prototypical! 
I find that prollem in just about every install I do.
That’s why a multimeter with a sound button on the ohm setting
comes in handy. You don’t have to look at the display as you sort out wires.
Except that the low resistance through a motor will sometimes fool you into thinking you have a solid wire, not on the “other side” of the motor.
BTDT…
Greg