This Allstar Performance Double D steering shaft is a solid steel shaft measuring 30 inches long with a 3/4 inch outside diameter. Viewed from the end it has the appearance of two D's stacked back to back, essentially a round shaft with flats machined on opposite sides. It is often used with stock type couplers and can be installed without welding. It is commonly connected to u-joints with a set screw, and the shaft should be dimple drilled to help pilot the set screw and prevent the assembly from sliding apart. An ALL52132 oversized rod end is commonly used to support the shaft.
Spec Sheet: Download PDF
Compatibility:
This is a universal Double D steering shaft that fits any application using a 3/4 inch Double D shaft with set-screw couplers, not vehicle-specific.
FAQ
What length is this Double D steering shaft?
This shaft measures 30 inches long, a shorter-mid option in Allstar's Double D shaft family, which also includes 24in (ALL52175), 36in (ALL52177), 60in (ALL52178), and 72in (ALL52179) lengths.
What is a Double D shaft and how is it different from a round shaft?
A Double D shaft is a solid 3/4 inch round shaft with flats machined on opposite sides, giving it the look of two D's stacked back to back. This lets it be used with stock type, set-screw couplers without welding, unlike Allstar's round steering shafts (ALL22190/ALL22191).
How is this shaft attached to a u-joint?
It is commonly connected to a u-joint using a set screw. The shaft should be dimple drilled to help pilot the set screw and prevent the assembly from sliding apart.
Does this fit a specific vehicle?
No, this is a universal Double D steering shaft for custom steering assemblies, not tied to a specific vehicle.

