I JUST LET THE CRATE SLIDE AROUND,... I THINK MY DOG LOVES TO BE BOUNCED AROUND IN HIS CRATE FROM ONE SIDE OF THE TRUCK BED TO THE OTHER. HE EVEN SQUEELS IN DELIGHT WHEN HIS CRATE HITS THE SIDES OF THE BED.

I'M JUST JOKING. LOL
ON A SERIOUSE NOTE, I USUALLY USE BUNJY CORDS THROUGH THE VENTS, IF ITS A SHORT TRIP I SOMETIMES JUST LEAVE THE CRATE UNSTRAPPED, IT DOESN'T SLIDE AROUND AT ALL, BY BED LINING HAS GOOD GRIP, PLUS THE WEIGHT OF THE DOG MAKES IT HARD FOR THE CRATE TO SLIDE. BUT I RARELY HAVE MY DOG IN THE BACK OF THE TRUCK,.. USUALLY IF I'M IN THE TRUCK, HE IS INSIDE THE TRUCK WITH ME. I ONLY KEEP HIM IN THE CRATE IF I'M ON MY SUBARU.