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A linear or longitudinal torsion axle where the torsion shaft extends parallel to the longitudinal extent of the vehicle to which the torsion axle is attached. The torsion axle includes two torsion assemblies with the torsion shaft extending into and being supported by both torsion assemblies. Each

A linear or longitudinal torsion axle where the torsion shaft extends parallel to the longitudinal extent of the vehicle to which the torsion axle is attached. The torsion axle includes two torsion assemblies with the torsion shaft extending into and being supported by both torsion assemblies. Each torsion assembly has a housing enclosing a plurality of resilient torsion rods spaced about the outside of the torsion shaft. The torsion shaft is fixed to a wishbone connector that is positioned between the two torsion assemblies. A wheel spindle is fixed to an outer end of the wishbone connector to accept a wheel and tire assembly.

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1. A torsion axle comprising:a shaft; at least one torsion assembly, the shaft extending into and being supported by the at least one torsion assembly; a connecting arm being fixed to the shaft; and a wheel spindle pivotally connected to an end of the connecting arm distal to the shaft, the wheel sp

1. A torsion axle comprising:a shaft; at least one torsion assembly, the shaft extending into and being supported by the at least one torsion assembly; a connecting arm being fixed to the shaft; and a wheel spindle pivotally connected to an end of the connecting arm distal to the shaft, the wheel spindle having an axis 90° to the axis of the shaft, the wheel spindle having a pivot axis at the pivotal connection to the connecting arm, wherein the wheel spindle pivot axis intersects the wheel spindle axis; and the wheel spindle pivot axis is substantially parallel to the axis of the shaft. 2. The torsion axle according to claim 1, wherein the at least one torsion assembly comprises:a housing adapted to be attached to a vehicle; and a plurality of resilient rods within the housing, the shaft being positioned within the housing, the resilient rods being spaced about an outer periphery of the shift, the resilient rods extending parallel to the shaft. 3. The torsion axle according to claim 2, wherein the shaft is configured to engage the resilient rods whereby the resilient rods resist rotation of the shaft.4. The torsion axle according to claim 1, wherein the shaft is tubular.5. The torsion axle according to claim 1, wherein the shaft has a non-cylindrical shape.6. The torsion axle according to claim 1, wherein the number of torsion assemblies is two, the torsion assemblies being spaced apart, the connecting arm being positioned between the torsion assemblies.7. The torsion axle according to claim 6, wherein the shaft is comprised of two shaft sections, one shaft section being fixed to a first side of the connecting arm and extending into and being supported by one torsion assembly, the other shaft section being fixed to a second side of the connecting arm and extending into and being supported by the other torsion assembly.8. The torsion axle according to claim 1, further comprising:an adjustable length camber caster adjusting arm having a first end attached to a torsion assembly and a second end attached to the wheel spindle. 9. The torsion axle according to claim 8, wherein the adjustable length camber caster adjusting arm is pivotally attached to the torsion assembly.10. The torsion axle according to claim 9, wherein the adjustable length camber caster adjusting arm is pivotally attached to the wheel spindle.11. The torsion axle according to claim 8, wherein the second end of the adjustable length camber caster adjusting arm is vertically offset from the wheel spindle pivot axis.12. The torsion axle according to claim 1, wherein the number of torsion assemblies is one, one end of the shaft being fixed to a first side of the connecting arm, extending into and through the torsion assembly, and having its other end fixed to a second side of the connecting arm.13. The torsion axle according to claim 1, wherein the connecting arm has a wishbone shape.14. A torsion axle comprising:a shaft; two spaced apart torsion assemblies, the shaft extending into and being supported by the torsion assemblies, each torsion assembly having: a housing adapted to be attached to a vehicle; and a plurality of resilient rods within the housing, the resilient rods being spaced about an outer periphery of the shaft, the resilient rods extending co-linearly with the shaft, the shaft being configured to engage the resilient rods, whereby the resilient rods resist rotation of the shaft; a wishbone connecting arm positioned between the torsion assemblies and being fixed to the shaft; and a wheel spindle pivotally connected to an end of the wishbone connecting arm distal the shaft, the wheel spindle having an axis 90° to the axis of the shaft, wherein the resilience of the resilient rods in one torsion assembly is different than the resilience of the resilient rods in the other torsion assembly. 15. A torsion axle for use with a trailer, the trailer having a longitudinal dimension extending from front to back and a transverse dimension extending from side to side, the torsion axle comprising:a longitudinally extending torsion shaft; at least one torsion assembly, the torsion shaft extending into and being supported by the at least one torsion assembly, the torsion assembly comprising: a housing adapted to be attached to the vehicle; and a plurality of longitudinally extending resilient rods within the housing, the resilient rods being spaced about an outer periphery of the torsion shaft, the torsion shaft being configured to engage the resilient rods whereby the resilient rods resist rotation of the torsion shaft; a connecting arm being fixed to the shaft; a wheel spindle pivotally connected to an end of the connecting arm distal to the shaft, the wheel spindle having an axis 90° to the axis of the shaft, the wheel spindle having a pivot axis at the pivotal connection to the connecting arm, wherein the wheel spindle pivot axis intersects the wheel spindle axis and the wheel spindle pivot axis is substantially parallel to the axis of the shaft, wherein the trailer includes a floor and a plurality of sides, the torsion assembly housing being attached to one of the trailer floor and a trailer side. 16. The torsion axle according to claim 15, wherein the number of torsion assemblies is two, the torsion assemblies being spaced apart, and wherein the connecting arm is wishbone shaped, the wishbone shaped connecting arm being positioned between the torsion assemblies.17. The torsion axle according to claim 15, further comprising:an adjustable length camber caster adjusting arm having a first end pivotally attached to a torsion assembly and a second end pivotally attached to the wheel spindle. 18. In a trailer having a floor and a side, the trailer having a longitudinal dimension extending from front to back and a transverse dimension extending from side to side, the improvement comprising:a torsion axle comprising: two spaced apart torsion assemblies, each torsion assembly having a longitudinally-extending shaft, an elastomeric bushing about the shaft, and housing about the elastomeric bushing, the housing having at least one flange extending therefrom; a connecting arm positioned between torsion assemblies, the shafts being fixed to the connecting arm; and a wheel spindle pivotally connected to an end of the connecting arm distal to the torsion shafts, the wheel spindle having an axis, and a pivot axis relative to the connection to the connecting arm, the wheel spindle axis intersecting the wheel spindle pivot axis, the wheel spindle pivot axis being parallel to the axis the shafts, wherein each torsion axle housing is selectively attached to one of the trailer floor and the trailer side.