Depends if you are running splash aprons & running boards. The 28 29 are different than the 30 31 where it mounts to the splash apron.
thanks guys ,, all I am really concerned about is if they will fit against the quarters , suppose I gona bob them anyway, I can get them fairly cheap , width and outer pressing of no concern really ,,and no no splash aprons will be used so,, do you think they will basically mount to the body, anyone know for sure ? Thanks