that is one steep hill. i don't think i would chance it with the family inside going up in a v6. i know it's a small boat but gas/gear is heavy. if you try it, try to get a running start. i hate for you to bog down in the middle on a turn and have to try to back down it. it's not safe with the cliff next to you. i had a full size dodge with a v8 and it pulled it ok with our boat. i wouldn't want to chance it with anything smaller in my truck.