3rd gen mounts r weigh different u will have to move all mounts cab .frames mounts from 3rd to 2gen r all in diff erent locations. use second gen ex cab will be easyer to install .
So i just bought a 3rd gen extra cab, and from what I can see the body mounts are VERY VERY close to the same spot as my second gen stdcab! So far the entire frame is the same, except for the IFS, 3.0 motor mounts, and its wheel base is about 20in longer.
Time to update the build!