I'm puzzled by that 109hp tag - the usual tag for the 235 sez 125hp at 4000rpm, and the
55 manual sez 123hp - maybe someone switched it for an earlier one? the 6 hasn't been 109hp since about 52 or so
the NAPCO was the only model that could only be had [from the factory] with the 6, but the TF frame always only had those frame pads installed [with rivets] if the truck was V8 equipped at the factory, which is when the mounts were added, otherwise they weren't installed
Bill