GorillaMaxx GR3 Help needed

Im having issues mounting the rear bulks to the bottom plate.
When I attach the 2 top plates to the bulks everything on top lines up properly.
On the bottom, the bulk holes dont line up on the bottom plate. Its almost like the bottom plate is not long enough.

If I do it the other way and line up the bulks to the bottom holes the drive shaft james and wont let the rear bulks slide forward enough to line up.
If I remove the rear drive shaft, and do line up the bottom plate holes to the bulk, then the top plates are to long.

Either Im having a really bad time trying to read the directions and have grossly mis-built this thing or the bottom plate is not proper.

Is there anyone out there that could measure up the total length of their rear bottom plate and post it for me or see anything Im doing wrong in the photos?


Thanks,
-Ed


Top view




Bottom view.



Side view