Recently returned from a 7,700km trip into the centre of Australia, where the roads are mainly dirt in varying states of repair. We were towing a camper trailer (~3,000lb) at speeds up to 50mph with the tyre pressures around 24psi. Front tyres look great still (Mickey Thompson 5-rib ATZ in 245/75R16) but the rears..............well, see for yourselves.

http://s4.photobucket.com/albums/y149/pipeliner/Tyre%20wear/

Anyone else had a problem like this?

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November 2006 2.8 CRD manual, CRDSTU front springs, King HD rears, Polyairs, LT245/70R16 Pirelli Scorpion ATRs, DP chip, Airflow snorkel
TJM alloy front bar, Ox 9500lb winch, Hella Compact 4000 spots, Complete set Mopar skid plates, Mopar cargo barrier
GME TX3440 UHF, Codan NGT HF

Next time I would try to up the PSI to about 35. Not sure, but it may be partially due to overheating by underinflation.

That or just a manufacturing defect on the two rears. I would try higher PSI next time.

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2005 Limited CRD

Anytime you're towing, you shoul dbe up around max PSI in the tires, that's how they are designed. I agreed about low pressure and heat buildup.
I did a search, here's one of your mates had same exact problem.....

http://www.patrol4x4.com/forum/showthread.php?p=283915

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'99 Tahoe, 3" BL, 285/75/16's , MT II's.
'05 Liberty Sport, -wifey's
'98 Poncho Fireturd, 3.8L, .....the purple pig!