Arrow Blocked Slide Block

A restricted sliding piece puzzle. The original was titled "Grandpa's Truck and Garage" with a picture of a double fronted garage and truck painted on the pieces. The object being to move the truck to the other side of the garage.
When Bill asked me to make his puzzle it was 2 years before I came up with a design for the pieces that fitted the way that I work. The original was also much larger. Now you have to move the arrow head to the other side, after first removing the spacer piece! Bill's puzzle won 1st prize in the 1986 Hikimi Wooden puzzle competition.