According to all old post and there have been many no there is some modifications possibly even to the fenders. You can do a search of the forums to find the old ones.
1973 Dodge Shorty B-100
Life should not be a journey to the grave with the intention of arriving safely in a well preserve body,
but rather to skid in broadside in a cloud of smoke, thoroughly used up,
totally worn out, and proclaiming
"Wow What a Ride"
"O Vanners" of Connecticut! Since 1982