superjunior
Addicted to ArboristSite
The chippers got bigger than that truck was intended to handle, height wise. The 75 chevy one ton box I built for a chuck and duck, then the company I was working for gave me a 1400 vermeer and I had to lower the tongue down some like you, but mostly got by just adjusting the shoot down.
The power company was requiring a self feeder for to make the right size chips for EAB req, so I bought my woodchuck wc-17 because I thought that they were going to shut me down before the treetards in missouri would send one up. I have the same problem with it, so the one I built on my super duty stands with 10 ft clearance with 6ft head room in the box. Both roofs hinge over to allow for top loading. You might consider a design that allows for that concept.
I should think that you could beef up a 600 some and be ok axle wise, but it would be more like an f-750 or 800 then right? Could you mount a tag axle? I had one on a 71 chevy c-60 graintruck that I used for a chip truck once. I don't think I could have overloaded it had I wanted to.
Its an old Davey truck (obvious by the green and yellow paint under the white) so I'd think it was designed for a small chipper.
I used to just point the shoot down but the chips would stack up in the back of the truck and it would still spray chips everywhere. By lowering down on the jack stand now the truck packs real good but I still need much more capacity.
Hinged tops sounds like a good idea or even just a removable top since I do have a crane and I'm leaning towards having the top fabbed anyway.
Think I'd still need to beef up the suspension tho. Got any pics of your chip box?