Where can I find the serial # on my Flxlner?

[Mex-Busnut]

Dear friends,

Besides the engine compartment and the front bus towbar in front of the spare tire housing (I have already found my serials there!), is there any other place on the Flxliner (rails, etc.) where I can find the vehicle's serial number?

In case you are wondering, our local DMV insisted on finding the serial number in three places when we registered our skoolie, so I want to be prepared in advance.

Thanks in advance!

[Busted Knuckle]

Look at the frame near the steering gear box they usually stamp it near there along with an "in service date."  Hope this helps you've already covered the other areas I would have suggested.
  BK