There aint one. Nobody knows why but there are hundreds of theories. Mine is so you can put the dog in the cab without him walking in the street. Of course you have to train him to unlock your door from the inside. wink


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.