By Taillamp Assembly do you mean taillamp and stand? There are several different stands from 1933-35 Std. as well as different taillamps, although they all use the same lens. Of course, there are also right and left hand versions.Some taillamps have the license lamp bulb exposed through a hole surrounded by a rubber grommet, some have license lamp lenses as most cars do. The mounting tabs are also different in position.