The Swivelwheel SW-58 model carries the 5-70-8 load range D - 8 ply with a carrying capacity of 1075 lb. with a 100 psi.

The Swivelwheel  SW-46, DW-58 AND DW-58 Tandem Tow carry the 5-70-8 load range C - 6 ply with a carrying capacity of 910 lb. with a 75 psi.