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XJ4IV
06-02-2012, 12:05 AM
ok so I saw this very basic trailer that I REALLY like and am considering building one with the help of another member here
heres the trailer
http://www.scorpion4x4.com/coppermine/albums/userpics_bak/normal_hauler8.jpg
my question is could this trailer be bolted RIGHT to the frame??? or does it HAVE to have a spring... it looks as though it is NOT sprung
http://www.pirate4x4.com/forum/attachment.php?attachmentid=668914&stc=1&d=1335733840
http://www.pirate4x4.com/forum/attachment.php?attachmentid=341720&stc=1&d=1197733219
http://www.pirate4x4.com/forum/attachment.php?attachmentid=344609&stc=1&d=1199285743
http://www.pirate4x4.com/forum/attachment.php?attachmentid=344610&stc=1&d=1199285743
http://www.pirate4x4.com/forum/attachment.php?attachmentid=344611&stc=1&d=1199285743
http://www.pirate4x4.com/forum/attachment.php?attachmentid=344612&stc=1&d=1199285743
http://www.pirate4x4.com/forum/attachment.php?attachmentid=341714&stc=1&d=1197733105
http://www.pirate4x4.com/forum/attachment.php?attachmentid=341715&stc=1&d=1197733105
http://www.pirate4x4.com/forum/attachment.php?attachmentid=341716&stc=1&d=1197733120
bigjim350
06-02-2012, 12:42 AM
Without a spring of some sort the trailer would bounce uncontrolably. Like bounce off the ground and fly across lanes. That could be a torsion type axle, although ive never seen a dually version.
4.3LXJ
06-02-2012, 08:56 AM
Without springs the frame will eventually bend
olds-cool
06-02-2012, 01:20 PM
What about a set of airbags instead of springs?
bigjim350
06-02-2012, 01:43 PM
What about a set of airbags instead of springs?

Then you would have to build some sort of link setup. Which would be cool, but springs would be a lot easier

Sent from my nerdy smartphone
XJ4IV
06-02-2012, 10:06 PM
I wonder if they notched the frame and the leaf springs are bolted to the top of the box frame? its a chevy design to perhaps the shackles are inverted!???
XJ4IV
06-02-2012, 10:15 PM
Without a spring of some sort the trailer would bounce uncontrolably. Like bounce off the ground and fly across lanes. That could be a torsion type axle, although ive never seen a dually version.

this might sound far fetched but what about using the spring of the jeep thats ON the trailer and the weight of the jeep holding the trailer down...
USUALLY when I tie the jeep down I do it by axle anyhow leaving the jeep to bounce under its own suspension
bigjim350
06-02-2012, 11:39 PM
The trailer will still bounce even tied down like that.
xjrev10
06-03-2012, 05:55 AM
A trailer with 2 axles will pull more comfortably down the road.
4.3LXJ
06-03-2012, 08:03 AM
And bounce less
OrangeXJ
06-03-2012, 09:04 AM
neat looking but too short for my liking. My motor home is a dulley and has no springs
XJ4IV
06-03-2012, 12:20 PM
soooo the axle is bolted straight to the frame?
KH96XJ
06-03-2012, 07:23 PM
It looks like there aren't any springs. Unless there are some short springs mounted under the rail that can't be seen.
Carves
06-03-2012, 09:24 PM
Theres quite a few dual axle, car trailers down here just relying on sidewalls for suspension ... :D

... but they dont go far ... or fast ... ;)

Proper factory made ones have suspension fitted tho.

Since you have plenty of XJ, clearance ... A curved trailer deck ought to allow you a low, loading end and ample space for trailer springs.