Member - Willem replied:

Toonfish,

Can't see why your idea would not work. Make up a bracket that bolts to the chassis rail at the left hand back with a pivot. Secure the carrier when closed to the rear tailgate. Make sure you brace the inside of the tailgate. You could probably make this device for under $200.

Alternatively you can fit the spare wheel over the cab on a small rack ( can you fit such a rack to a Navara?). I have seen some government Toyotas fitted out as such. Just some thoughts. I have spent my life thinking out ways and means to carry extra gear on vehicles. Some inventions work and some don't. But you gotta try! Cheers,W

Truckster replied:

Its a ute, throw the spare in the back!

toonfish replied:

very true it is a ute but can be very full when on a jaunt and when its loaded i would like easy access to it like on the swing out gate style spare wheel carrier from a pathfinder or bronco without spending big dollars.

roof rack idea is cool but if my wife (handbrake) got a flat she would have a fun time climbing up and down with it.
cheers