right now they are on chains and when i take then off the know time to hunt i got them trained good ill take them off the chain and if their hole in the dog box is open they will load up or wait on me to open it

Same here, i open the kennels and drop the chains the dogs run straight to the truck and either load up in the bed or wait for me if the tail gate isn't down, in fact I got one real skidish dog that you can catch, but when that tailgate goes down he is the first in and the first out.