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
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.