tow rope

[littlesammy]

Ive got a couple of kinetic straps that so far have pulled whatever ive asked out !!

[windsor]

Demar turns out to be just down the road from me and a 3m orange 5t towing strap has set me bak 5quid just need to get some shakles now

[twiss]

Get yourself some 7-10t shackles just to be safe

[Jordi]

I found an excellent guide to winching that showed the effects different types and amounts of mud/stuckness and how much it effectively increases your vehicle weight.

I think it works out that if you are stuck over halfway up your wheels, then it effectively doubles the weight you are pulling... Usually when I get stuck its normally a case of mud up the doors so climb out the window

That's got to at least quadruple the weight!

That would be known as a ground factor, used to work out the rolling rolling resistance. Also depends on the gradient, any damage and a safety factor.