Shep said ::::
Why not just buy one of those tailgate stays for £6?
Whey Hey,,,,,that'll be the 'Fritzfinger' a device that slips over the tailgate striker post (fixed when in position) and the other end connects to the latch mechanism which can then be locked if required. It allows the tail gate to be left slightly ajar to aid ventalation,,,,,BUT is secure enough so no-one can reach inside to nick your gear.
In fact our lass has been using one for the last couple of nights while she is camping with the kids at a secret location........
Regards
Fritz,,,,,,,,,,
PS, I'll post some up to date images of the said item if anyone is interested in taking one off me,,,,,,,,,,,,,,,,£6 inc postage to UK mainland.