If I haven't mention it said last week I bought a John-Deere model 410 back hoe .I found a forum on FB of antique JD back hoes which has been helpful with ideas because I know almost nothing about that machine .All I know is it weighes 14,000 pounds and makes 66 horse power and can dig 14.5 feet deep and lift around 5-6000 pounds .I've never been skunked on old machines by lack of knowledge ,I'll figure it out sooner or later