Will my side steps from my supercab fit on to a single cab truck?

 

i don't think so. reg cabs and ext cabs have different mounting points i believe.

 

Fount mount will work back will need something custom of some sorts I have actually seen a Reg forsale with ext cab bars because it came to the end of the wheel well on the bed. looked good idk how he mounted it

 

If they came off of a 2 door extended cab then the brackets will work but you would need to modify the bar itself with new holes for the repositioned rear bracket. If they came off of a 4 door extended cab then the rear brackets would not work.