Body shots are always as hard as you can throw them - this is always the case - thus, if an opportunity to "drag" this punch arises {which it oftentimes will when delivering a right hook to the body}, take it.

KNOW THIS:  we don't shift our bodies to the right side (when throwing a right hook to the body) in the same manner that we shift our bodies to the left (when throwing a left hook to the body) - rather, when throwing a right hook to the body we "drop straight down" - shifting to the right will not allow you the proper positioning to drag the punch while being thrown.