i see. so the stock esc made smoke.

on another truck ? or this one?

do you mean the mechanical speed control?
the little white resistor with three wires and the metal cage can smoke and does burn out often. it gets hot and will burn off anything that gets on it too.

now the radio from your old truck does not work right any more.
is that what you mean?
check your settings of the d/r for steering , could be turned down to off
check different servos ( swap steering to throttle if you need to ) and check the pins where they plug to reciever.