For Pickuprover, do your best mate, some good info coming in, but until solved all new notions wanted, cheers.

if you are thinking of putting this device on the front of a landy, think youll need a good design/stress engineer to sort the thing out. im not sure that itll ever work for this application. surely the device is more suitable for medium/heavy engineering.
(mainly straight pull at that).

the strength required for the rollerguides to guide the cable at an angle would be considerable. winching say 4 tons?
hate to think of the stresses on the mounting points/welds etc...?

i would love to see this work though.

Here is the webpage with the Unimog winch that hahttp://www.rockymountainmoggers.com/hpcwinch.htmls the diamond screw. Not much info but has pictures if you are trying ot manufacture something...