I have a big log chain that belonged to my father,I rolled a stump/dirtball off of a bank on to the edge of the road,I thought no problem dragging it down a small grade on black top with my 4400...wrong...my neighbor came out with his Massey Ferguson 54(?) hp 4wd drive and hooked on it and sat there and spun,well we had my JD 4400 and his Massey hooked up in tandem and barely moved the thing,we ended up hooking his Ford F-150 4 wd onto my JD 4400 and I was hooked up to his Massey Ferguson tires squeeling going down a grade on black top,and moved the stump about 50' and managed to get the stump rolled over in the ravine and darn near took my tractor with it,when the stump started rolling with the chain hooked to the stump and under my blade on my tractor.The stump and dirt ball was not really that big,but the weight of dirt can be deceiving. /forums/images/graemlins/shocked.gif
The other time I broke a chain and stretched another log chain, I had my JD 4400 about to slide over a hill and a guy I know brought his 4wd John Deere backhoe over to help me out. He positions his hoe and reaches out as far as he can with his bucket to reach me and we hooked 2 chains together,1 chain hooked to the "finger" on the bucket and the end of the other chain to my tractor and he pulled my tractor up over the bank and back on the road (after I had unhooked my JD 45 blade and had to roll it over the hill to get it out of the way) The back hoe operator sat there and wiped the sweat off of his head in a sigh of relief after the tractor was back on the road.