I used 2" cinch straps (6 total) to pull a disabled M-113A2 (13T + cargo) across the desert at the National Training Center (Ft. Irwin, CA) one night (summer of '85 or '86 if anyone is interested). Didn't want the vehicle to get "captured" by the OPFOR and they were the only thing available at the time. It gave up after about 5 miles. The math geniuses here are welcome to figure out the peak load(s) but I'm guessing they were pretty high. So I say, give it a try (over something soft).
If it's stupid but works, it isn't stupid.