Magnum's dropped tube axles accept '37-48 spindles, as well as their own, and are available in a 4- or 5-inch drop. They use 1018 forged ends with a 2-inch diameter, 1/4-inch wall 1018 seamless tubing, and have 1- to 1-1/4-degrees positive caster built in. A variety of widths are available, with custom widths at extra cost, and all are available plain or chromed, and with 2- or 2-1/4-inch perch bosses. The I-beam axles are also available in 4- and 5-inch drops, in four widths to fit '28-48 Fords. Again, both perch-boss sizes are available, as are the choices of plain or chrome finish.