If I'm correct, your Aspen Trail is equipped with a Leaf Spring suspension.
Below is a drawing of the axle(s) being moved from an
Over Spring to an
Under Spring configuration. This will give the trailer a taller Ride Hight(
lift).
Dexter sells an Over/Under conversion kit.
Click here.
If your trailer do raise(
lift) the trailer Ride Hight, you'll need to re-adjust your WD hitch and also raise the ball mount on your hitch.
If you axle is already a
Under Spring configuration, you can add spacer blocks between the springs and axle perch. Longer axle U-bolts will also have to be installed.
Below is a photo of axle spacer blocks and longer u-bolts.(
these are for a truck lift. for example only) I'm sure you get the idea!
The spacer blocks can easily be made using square tubing. When making homemade spacer blocks, you'll need to install an axle locating hole on the bottom of the block and a locating pin on the top. This isn't hard to do. I've made a few in the past.
Longer u-bolts can be bought from a trailer parts supply dealer.
Hope this helps,
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