I have a fifty year old Ford 800 series tractor that I have had for 35 years. It is about time to buy something new. I want to know what tractor in todays market will do the same work. I use it for dragging fallen trees, grading my driveway with a box blade, brush hogging, etc. This tractor has a four cylinder gasoline engine. The original book shows it to have 48 horse power but I don't know how they were rated back then. It sure doesn't seem to have all that much power to me. A full box blade of dirt will pretty much bring it to a stop. Any ideas on what a comparable tractor would be today?