Ok thanks tc and brooklee1000 - 3/8 grade 70. That's what I needed. I'll probably get some cable too, to extend my reach. I know only to use it (the chain) for static pulling.
Me and my brother have been planning a trip up the through Canada and the Alcan highway for a few years now.. We were both going to drive our trucks so we could do different things and not get on each other nerves too badly. Gas prices almost caused us to cancel the trip, but we decided we could do it with just one truck. It's a little hard to use a tow strap when you've only got one truck, and that's the reason we'll need the hi-lift and chain. I remember helping my grandfather winch his tractor out of the mud with a hi-lift, but that was back in the 80's - too long to remember exactly how to do it.. I seem to remember there was a way to do it so he didn't have to completely reset the rig each time it got to the end of the jack. we'll have to brush up.
Some of you guys sound like limp-wrists!
Yeah, lots of stuff can hurt you. Use your tools right, use your head, and take your time. You all stay nice and safe at home. - I'm going to Alaska!