LC 80 series door cracking

Hi Jon,
Mate, I haven't heard of that before, others may of.
My old girl has 309000km's on her and shes been down some rough roads and she has towed a fair bit in her life and she doesn't show signs of that.
Let us know what the panel beater thought about it or if they had ant idea what may of caused it. Have you got any picture of the crack?
Cheers.

It's possible that with standard springs, the bump stops are being used frequently transmitting a lot of jarring causing the weakest point to crack.

Also check the chassis around the steering box.

Personally I've has 4 very well used 80's and none have cracked the doors only the chassis.

Cheers
Dave

We had an 80 series at work a few years ago and the tailgate cracked above the number plate across the fold in the panel there.
They had it fixed, then later it cracked again.
It turned out that everybody who closed the tailgate, pushed the panel in roughly the same spot. This was done many times a day.
It was suggested that each time the tailgate was shut, push on each end of the tailgate, rather than in the middle. The idea was to not put too much stress on the panel in the centre.
We didn't have any more problems, but whether that was the cause, I don't know.
Do you grab the window frame of the door to close it?

Dave

My 2000 model Jackaroo has this on all 4 doors (I realise it's not an 80 series however it is exactly as you describe hence I thought I'd mention it). Mine also has no rust present.

Agree it's stress related, I know mine has been to the NT in it's history prior to me so I have always assumed corrogations etc. were the cause.

Have you ever adjusted the door strikers for any reason i.e. further in? This would put more pressure on the door at that point to my way of thinking.

Another theory could be air pressure on the doors when you close a door/tailgate with the windows closed. Sounds skeptical I know however my Jackaroo is amazingly airtight i.e. you really need to give each door a good hard push if you close it with all the windows closed as anything less will have the air pressure inside not allowing the door to close properly. My thoughts are over time this could lead to stress in the area where the cracks appear. To be honest, the more I think about it the more feasible this theory is.

Would be interested to see what others think as to cause. I haven't worried about fixing it as in going on 5 years has not got any worse and doesn't seem to effect anything (not that I'm happy about it).