Back space on our 22s

[34bud]

Im having steel wheels made up for my M&H 390 /40/17 drag tires and my 10 is in storage, does anybody know the back space on the 22s. Im trying to keep the tires under the truck.

 

[FATJACK]

6' inside 4" outside. Perfect fit!!

 

[JTS VENOM PERFORMANCE]

bout this far....................................................................................here