HI the chains I have are similar to what is shown in the link above but not as aggressive. i too have about 10-15 degree slope. i have them on all fours where the front is basically to help with steering instead of having the tracotr being pushed to the side when using the bucket to plow like a snow pusher. they have worked great since i got them 3 years ago. with them on i can plow going up hill, otherwise too difficult. i have a mahindra 2555. too me these are a great addition to all four, not cheap but then again they will probably last decades. i use the chain tensions on the outside of rim and use bungees on the inside of rim.