Truck cab rear door lock thingy riding up?

OK, you know the 2 slide things that keep the rear truck cab doors shut.
You have to kinda wedge them to lock them in place.
I have a swing away spare tyre mounted and that also locks in with the same thing.
Several times now if I go down a bumpy road this slide thing pops up and the door starts rattling. I have to stop and re-wedge it.

Twice now the swing away has actually come loose and the spare has swung out while I was driving!.

I can put a small lock there to stop it from popping completely out but it will still slip up a bit and rattle.

How do I stop it from moving at all?
It needs to be wedged so that it will not pop up on rough roads.

Thanks.

Are you referring to an Antiluce? Linky

Oldseadog said:

Are you referring to an Antiluce? Linky

Click to expand...

Yes, thats the thingy.

How can I stop that from coming up when I hit bumps?

natas said:

Yes, thats the thingy.

How can I stop that from coming up when I hit bumps?

Click to expand...

R clip

R-clip would stop it from popping off but would not keep it tight.

I am thinking of replacing the Antiluce with a bolt and washer and nut, that way I can get it tight.
But what a pain in the arse to open and close!!!!

There has to be a better method?????????

isnt it possible to adjust stuff so antiluce is tight when closed,they do shake open if loose

An over centre catch ?
Something like this ?
Rubber Hood Latches, Stainless Steel Over Center Catches - Moore Industrial Hardware

jamesmartin said:

isnt it possible to adjust stuff so antiluce is tight when closed,they do shake open if loose

Click to expand...

Mine is tight, I have to lean hard against the spare tire to get the lock to engage.

What about a big wing nut and bolt

natas said:

Mine is tight, I have to lean hard against the spare tire to get the lock to engage.

Click to expand...

is it too tight then so it doesnt slide down over half its length ?a lynch pin through it will stop it popping out

jamesmartin said:

is it too tight then so it doesnt slide down over half its length ?a lynch pin through it will stop it popping out

Click to expand...

If I push the tire really hard I can get it to the 1/2 way mark, but just.
I will try and adjust it out a bit.

Thanks.

I used to put a rubber washer behind the catch.

Simple, but it worked as it kept the pressure on.

Blue tack

A bungi elastic works a treat!

Oldseadog said:

I used to put a rubber washer behind the catch.

Simple, but it worked as it kept the pressure on.

Click to expand...

I did this and it worked a treat.

Also if you've not got any door seal thingys, then fit them down either side of the tub where the tailgate hits and it has a similar effect.

just put a padlock on it..