My 85 TD WAS the very best RW drive vehicle in the snow w/o any extra weight added. Tires would break free if I nailed it but seemed not to want to spin/skid around. I was simply running the Michelins I always ran.
This year I had a bright idea

and put a pair of studsthat came with my first SD on the back. *haven't even looked to see what the manufacturer is

* but now it feel so sloppy in the ass. ... feels like I'm running 22 lbs pressure even though I started at 32# and am now at running 36# in them. I can still feel the sidewalls give in turns. I'm waiting for the first good Ohio ice to show up to see if it's worth the trouble. Yah, yah. atleast I'm keeping some miles off the Mich's.
Franko in O..Hi..O