A set of 4 OEM quality 5x5.5 (5x139.7mm) 4" Wheel Spacers 9/16-18 Studss, enough to widen one axle 4" total (one spacer in the kit for each wheel on the axle).
One set of 4 OEM quality automotive wheel spacers for Toyota or Isuzu. 6x5.5-6x5.5 M14x1.5, enough to widen two axles 3" total (one spacer in the kit for each wheel on the axle).