I believe the OME 919's are the heavy load version...
...I think Dub runs those and he tows, and brings a chit load of stuff!
I found this...
OME912, 420 mm, 10.8, .....180-300 (medium load )
OME913, 390 mm, 9.3, .......180-300 (medium load)
OME919, 430 mm, 10.8,...... 200-280 (heavy load )
There is also the mega post from Rickshaw that pretty much tells it all.
http://www.vehicross.info/forums/sho...hlight=OME+919
jo