Many trailer parts dealers don't understand Airstreams. And many farm wagons with torsion axles do NOT have shocks.
The concern of an aluminum trailer rivited together requires a soft and smooth ride. While a rubber torsion spring axle does provide for that type of ride, travelling at interstate speeds introduces forces that put a strain on the trailer.
If the trailer was made of steel or wood with panels or screwed panels or traveling at speeds south of 45, not having shocks is likely OK.
Dexter states shocks are not needed! And yet Dexter makes the current axle and supplies shock brackets. When placing an order for a new axle the brackets can be supplied and most of the time they will be loose and need to be welded onto the axle.
Good luck with your generic axle dealer.
1966 Mercury Park Lane 4 DR Breezeway 410 4V, C-6, 2.80 - Streamless.
1966 Lincoln 4 door Convertible 462 4V 1971 Ford LTD Convertible 429 4V Phoenix ~ Yeah it's hot however it's a dry heat!