After 5 hours of slipping and sliding around on the sloppy wet snot that we got yesterday and overnight I bit the bullet and bought a full set of chains. Front and rear. Duo Grip from Canadian Chains. $984.oo tax in and delivered. It will probably take about 2 weeks to get here from BC.
I just put the same tire chains on the rear of my Mahindra for the same reason. Now I am just waiting for a chance to try them out! The only test so far is a ride on frozen ground, a bit bumpy but so far so good!