To know for sure, you would need to call them. If they don't have one, they can probably get you in touch with the
axle manufacturer.
How old is the
axle? If it is getting on to 15 or 20 years, It may be a better idea to just get a new axle. Torsion axles eventually wear out and loose their ability to absorb road shock.
I replaced mine on my 1999 13 ft
Scamp this past spring. Ordered the complete axle from
Scamp - quicker than ordering from the manufacturer. Had a local shop cut off the old axle, then, with phone instructions from Scamp, fabricated a mount that allows the axle to be bolted on. Next time the axle needs changing, it will be much easier.