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Old 02-27-2012, 07:46 PM
Join Date: Feb 2012
Location: SAUGUS MA
Posts: 2
Default Possible to turn a dump truck into a dump trailer?

Hello looking for some information if it would be able to take this 2007 isuzu npr dump truck to cut off the front wheels and turn it into a dump trailer. will i need to remove the rear gears, will it flip over when go to dump has any one ever done this before? or should i just find a cheap cab and motor and part it back together? any information would be helpful.. you can see the picture here . and what it should cost to get it up and running thank you !
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Old 02-27-2012, 09:09 PM
RED caddy's Avatar
RED caddy RED caddy is offline

10-28-1951 to 4-19-2021
Da Chief
Join Date: Aug 2004
Location: Venice, Florida
Posts: 5,556

Welcome Junkdepot,

ya might wanna cruise by "member introductions" and introduce yourself. (we don't bite. Tease, browbeat, chuckle, train, bewitch, bother and bewilder perhaps, but not bite)

Depending on the present condition of the base truck, like how many systems were left intact, engine, drive line, cooling etc.,after the teardown, along with the local availibility of the needed parts. I might well try to bring her back to life. Colision damage is a whole 'nother ting.

Here in my little corner of paradise, dump trailers are generally availible. Functional dump trailers, with perhaps some plate/sheet/tailgate repair required, are pretty afordable.

Fuso style lite dumps are few and far between hearabouts, and pricey , even when needing drivetrain repairs.

Your area may be different, so that's just a few things to consider.

Tell us more about your project,

More of the sheepdogs will be along shortly to further your survival training.

A 160 MPH drive, down a 2 lane blacktop, all by yourself, is NOT anti-social behaviour... I drag race because football, baseball, and golf only need ONE ball. Paul.

What I really need to know is, WHEN DOES THE SHOOTING START?
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Old 02-27-2012, 09:16 PM
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SmokinDodge SmokinDodge is offline
Post Fiend
Join Date: Feb 2006
Location: Missouri
Posts: 5,946

A neighbor has a similar setup like what your wanting to build.

It works well but isn't a replacement for a real truck. Hard to spread rock wvenly That is a big bed for use with heavy material. Half full of rock and it would be crazy heavy for a pickup.

His trailer is a gooseneck attached to the truck frame. We mounted a 12 volt hyd pump and battery in a truck tool box mounted on the neck frame. Cycle time is about 1.5 minutes but for his uses it's adequate.

I hauled quite a bit of manure with it and never had a tipping backwards problem but it was fairly dry and didn't stick to the bed.

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The guy that said money can't buy happiness never bought a tank of fuel for a turbo diesel.............
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Old 02-28-2012, 12:45 AM
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monckywrench monckywrench is offline
trust but verify
Join Date: Feb 2007
Location: Elsewhere
Posts: 4,464

A better bet may be transferring the bed and hydraulics to another truck.
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Old 02-28-2012, 02:27 AM
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JohnBoy JohnBoy is offline
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Join Date: May 2006
Location: Southern Ireland
Posts: 3,457

perfectly possible, done here all the time, not for behind pickups, but behind ag tractors.

An NPR would be a 3.5t truck here, which means that's a leaf body on it, so not very stout. a gravel/general duty body would only have maybe 18 inch sides on it.

But here you'd cut the chassis in front of the body, put a crossmenber in then another one around 1/2 ways back. then run your drawbar underneath these two crossmembers.

but I dont know how that would work with a pickup. I think you'd need a second axle in front of the current one.

a lot of work for a not ideal job. I'd fab a trailer chassis and mount the body on it if its what you really want.
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Old 02-28-2012, 03:32 AM
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JohnBoy JohnBoy is offline
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Join Date: May 2006
Location: Southern Ireland
Posts: 3,457

ok, did some more looking, seems I was wrong, the NPR goes up to 7.5t

still likely to be a pretty lightly built body though with that kind of height in it.
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Old 02-28-2012, 08:54 AM
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digger doug digger doug is offline
Join Date: Jan 2008
Location: NW Pa
Posts: 14,032

Originally Posted by JUNKDEPOT View Post
will i need to remove the rear gears,
No, the NPR has a full floater axle.

Pull the drive axles, make a cover plate, or cut off the axle,
and use the flange as a cover plate.
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Old 02-28-2012, 01:37 PM
kbs2244 kbs2244 is offline
Elite Member
Join Date: Sep 2006
Location: Way North Illinois
Posts: 1,675

I have seen older farm trucks turned into grain hauling trailers.
Due to their size they are not pulled by anything smaller than a 5 ton.
Often the axle is moved.
For balance and tracking they often get a long (10 to 12 foot) tongue.

Insurance is lower on a trailer than a truck.
But moving the systems to a new truck is something to think about.
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Old 03-01-2012, 08:17 PM
Join Date: Feb 2012
Location: SAUGUS MA
Posts: 2
Default Thank you

thank you for all of your input . My fabricator wants to move the front wheels and put them inder the dump and have a 4 wheel dump body. im still skeptical. i will be pulling it on junk removal jobs will only have 1-2 tons of trash in it at a time. he wants to charge me time and material i want a ballpark price im not getting straight answers from him. i will be pulling it with my toyota tundra @ times Thank you so much for your help!!!!!!!
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Old 03-01-2012, 09:48 PM
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greywynd greywynd is offline
I can dig it
Join Date: Dec 2005
Location: Wainwright, Alberta
Posts: 6,982

Do you want honest input? If you haven't put any $$$ into it yet, walk away and go buy a standard dump trailer.
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dump truck, fabrication

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