On your 2007 34 (SH or SE?) just above your HWH touchpad, there is an Vehicle Certification placard pop riveted to the wall.
In addition to VIN, it lists your serial#, type, model, color and tire pressures.
If you need your engine serial#, raise your bed, remove the four bolts holding the engine cover and raise the cover. The info plate is mounted next to the "S" in Cummins. Might need to wipe away the grime to read.
Fair Winds and Following Seas
Terry & Rosalina
2007 Winnebago Journey 34SE
Retired Navy Mustang & Navy Wife