Get yer self some busted D60 axle's that broke at the splines (trust me they are common) and sharpen 1 end with a torch and carry em in the rig, just drive a few in the ground at an angle and wind a strap thru them and hook the winch to the strap.... there is a pic on a winch mfg co's page..... i think there is a good write up on this at
www.therangerstation.com may wanna surf over there and have a look.